Station Name: NORFOLK/KARL STEFAN, NE WMO Station Number: 72556 National I.D. Number: 00255995 Country: UNITED STATES OF AMERICA WMO Region: REGION IV - NORTH & CENTRAL AMERICA Latitude: 41d 59m N Longitude: 097d 26m W Elevation: 473 m In the following tables, byr = beginning year of normals or extremes data period eyr = ending year of normals or extremes data period NA = Not Applicable, data not submitted or not computed * = value > 0 but < units resolution Ann-NCDC = annual value computed by NCDC from monthly values provided by Members ========================================================== The normals data and climate variable descriptions are presented in these tables as provided by the WMO Member country. ========================================================== Element 01: Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN #_YEARS Month -------------------------- Jan -7.2 30 Feb -4.2 30 Mar 2.1 30 Apr 9.8 30 May 16.1 30 Jun 21.3 30 Jul 24.1 30 Aug 22.6 30 Sep 17.3 30 Oct 10.8 30 Nov 2.3 30 Dec -5.1 30 Annual 9.2 30 Ann-NCDC 9.2 NA -------------------------- Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MAX_VAL (Statistic 04): Maximum Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------------------------------ byr: 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 Statistic: MEAN MAX_VAL DATEMAX #_YEARS Month ------------------------------------------ Jan -1.3 21.7 198124 30 Feb 1.5 22.2 198117 30 Mar 7.9 31.1 198629 30 Apr 16.4 35.0 198922 30 May 22.6 39.4 196725 30 Jun 27.8 41.1 198821 30 Jul 30.4 41.1 198007 30 Aug 28.8 41.7 198316 30 Sep 23.9 38.3 197107 30 Oct 17.8 35.0 199005 30 Nov 8.3 26.1 197803 30 Dec .4 21.7 196216 30 Annual 15.4 NA NA 30 Ann-NCDC 15.4 NA NA NA ------------------------------------------ Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MIN_VAL (Statistic 05): Minimum Value DATEMIN (Statistic 14): Date (Year/Day) of Occurrence of Minimum Daily Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------------------------------ byr: 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 Statistic: MEAN MIN_VAL DATEMIN #_YEARS Month ------------------------------------------ Jan -13.1 -32.8 197412 30 Feb -9.9 -32.2 198111 30 Mar -3.9 -25.6 197804 30 Apr 3.1 -16.7 197503 30 May 9.6 -4.4 197603 30 Jun 14.8 3.3 199004 30 Jul 17.8 5.6 197130 30 Aug 16.2 4.4 198628 30 Sep 10.6 -3.3 198429 30 Oct 3.7 -10.6 197219 30 Nov -3.6 -26.1 196430 30 Dec -10.7 -34.4 198922 30 Annual 2.9 NA NA 30 Ann-NCDC 2.9 NA NA NA ------------------------------------------ Element 04: Wet Bulb Temperature (deg C) SD3HRLY (Statistic 60): Standard Deviation of 3-Hourly Values MN3HRLY (Statistic 94): Mean of 3-Hourly Observations #_YEARS (Statistic 98): Number of Years used to Calculate Normal ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: SD3HRLY MN3HRLY #_YEARS Month ---------------------------------- Jan 7.4 -7.7 14 Feb 7.6 -5.8 14 Mar 6.0 .3 14 Apr 5.5 6.2 14 May 4.5 11.9 14 Jun 4.0 16.7 14 Jul 3.1 19.5 15 Aug 3.6 18.6 15 Sep 5.1 13.7 15 Oct 4.9 6.5 15 Nov 6.1 -.2 15 Dec 7.3 -6.3 15 Annual 11.1 6.1 14 Ann-NCDC NA 6.1 NA ---------------------------------- Element 05: Dew Point Temperature (deg C) SD3HRLY (Statistic 60): Standard Deviation of 3-Hourly Values MN3HRLY (Statistic 94): Mean of 3-Hourly Observations #_YEARS (Statistic 98): Number of Years used to Calculate Normal ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: SD3HRLY MN3HRLY #_YEARS Month ---------------------------------- Jan 8.5 -11.8 14 Feb 8.2 -9.5 14 Mar 6.2 -3.4 14 Apr 6.1 1.6 14 May 5.6 8.2 14 Jun 4.8 13.4 14 Jul 3.3 16.9 15 Aug 4.0 16.2 15 Sep 5.7 10.5 15 Oct 5.5 2.4 15 Nov 6.6 -3.8 15 Dec 8.2 -9.6 15 Annual 11.7 2.6 14 Ann-NCDC NA 2.6 NA ---------------------------------- Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value MIN_MLY (Statistic 20): Minimum Monthly Value QUIN20% (Statistic 22): First Quintile QUIN40% (Statistic 23): Second Quintile QUIN60% (Statistic 24): Third Quintile QUIN80% (Statistic 25): Fourth Quintile MAX_MLY (Statistic 26): Maximum Monthly Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 Statistic: MEANMLY MIN_MLY QUIN20% QUIN40% QUIN60% QUIN80% MAX_MLY #_YEARS Month -------------------------------------------------------------------------- Jan 13.2 1.5 4.8 8.6 13.2 20.3 41.4 30 Feb 19.6 1.5 5.6 11.4 18.8 31.0 80.8 30 Mar 47.2 1.5 13.7 27.4 45.2 74.4 184.7 30 Apr 58.2 5.8 22.6 38.9 58.4 88.1 189.7 30 May 93.5 35.1 55.4 76.2 97.8 127.8 218.7 30 Jun 113.3 13.7 51.3 81.5 115.8 166.6 310.4 30 Jul 81.8 20.8 47.0 65.8 85.3 113.0 164.8 30 Aug 64.8 13.5 33.8 49.8 67.1 91.7 118.4 30 Sep 62.2 14.0 24.6 41.9 62.5 93.7 206.5 30 Oct 40.6 0.8 10.9 22.9 38.4 64.3 116.1 30 Nov 25.7 0.8 3.6 10.4 21.3 41.9 100.8 30 Dec 18.8 4.8 9.7 14.2 19.6 26.7 57.2 30 Annual 638.9 NA NA NA NA NA NA 30 Ann-NCDC 638.9 NA NA NA NA NA NA NA -------------------------------------------------------------------------- Element 08: Maximum 24-Hour Precipitation (mm) MAX_DLY (Statistic 11): Maximum Daily Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: MAX_DLY DATEMAX #_YEARS Month ---------------------------------- Jan 33.0 198222 30 Feb 59.9 197118 30 Mar 61.2 198128 30 Apr 37.3 198312 30 May 86.6 197326 30 Jun 136.9 197405 30 Jul 72.4 196131 30 Aug 64.3 197814 30 Sep 98.6 197002 30 Oct 53.8 196816 30 Nov 38.1 198409 30 Dec 27.4 198224 30 Annual NA NA NA Ann-NCDC NA NA NA ---------------------------------- Element 09: Snowfall (cm) MEDIAN (Statistic 02): Median Value MAX_DLY (Statistic 11): Maximum Daily Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value MEANMLY (Statistic 15): Mean Monthly Value QUAR25% (Statistic 58): First Quartile QUAR75% (Statistic 59): Third Quartile #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------------------------------------------------------ byr: 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 Statistic: MEDIAN MAX_DLY DATEMAX MEANMLY QUAR25% QUAR75% #_YEARS Month ------------------------------------------------------------------ Jan 11.4 32.5 198222 14.5 7.9 18.3 30 Feb 10.7 48.3 198418 15.7 7.4 15.7 30 Mar 13.7 22.9 197009 15.5 8.4 24.4 30 Apr 1.5 24.6 198429 5.1 Trace 6.6 30 May .0 Trace 198905 Trace .0 .0 30 Jun .0 .0 199030 .0 .0 .0 30 Jul .0 .0 199031 .0 .0 .0 30 Aug .0 .0 199031 .0 .0 .0 30 Sep .0 2.5 198529 .3 .0 .0 30 Oct Trace 7.9 198219 1.3 .0 1.3 30 Nov 3.8 36.6 198327 9.7 2.3 10.9 30 Dec 15.5 23.4 197802 17.5 7.1 22.6 30 Annual NA NA NA 79.6 NA NA NA Ann-NCDC NA NA NA NA NA NA NA ------------------------------------------------------------------ Element 11: Relative Humidity (%) MN00LST (Statistic 70): Mean of Observations at 0000 LST MN03LST (Statistic 73): Mean of Observations at 0300 LST MN06LST (Statistic 76): Mean of Observations at 0600 LST MN09LST (Statistic 79): Mean of Observations at 0900 LST MN12LST (Statistic 82): Mean of Observations at 1200 LST MN15LST (Statistic 85): Mean of Observations at 1500 LST MN18LST (Statistic 88): Mean of Observations at 1800 LST MN21LST (Statistic 91): Mean of Observations at 2100 LST MN3HRLY (Statistic 94): Mean of 3-Hourly Observations ---------------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 1990 Statistic: MN00LST MN03LST MN06LST MN09LST MN12LST MN15LST MN18LST MN21LST MN3HRLY Month ---------------------------------------------------------------------------------- Jan 71.8 72.9 73.5 71.6 61.8 58.5 65.0 70.4 67.8 Feb 75.2 76.5 76.8 73.7 62.4 58.8 64.5 72.6 70.3 Mar 75.4 78.6 79.3 72.1 58.7 53.2 56.7 69.1 68.4 Apr 68.7 75.1 78.3 63.5 49.5 43.6 45.9 61.0 60.6 May 72.5 78.4 79.4 62.3 49.8 44.7 47.2 62.0 63.1 Jun 71.6 77.7 81.0 63.5 50.2 44.5 46.4 63.2 62.2 Jul 75.5 80.0 82.6 65.6 52.4 46.5 48.9 67.2 65.6 Aug 79.5 82.7 85.2 69.4 54.9 48.4 52.1 71.6 69.1 Sep 75.0 79.8 84.5 70.4 53.7 47.6 53.0 71.2 65.6 Oct 72.6 77.1 79.8 68.1 49.5 42.9 51.9 66.5 63.8 Nov 75.2 78.1 80.0 75.2 59.3 52.9 63.4 72.1 69.3 Dec 76.2 77.1 77.1 75.4 65.5 61.4 69.5 74.1 72.3 Annual 74.6 78.3 79.8 69.2 55.6 50.2 55.3 68.4 66.9 Ann-NCDC 74.1 77.8 79.8 69.2 55.6 50.2 55.4 68.4 66.5 ---------------------------------------------------------------------------------- Element 11: Relative Humidity (%) Statistic 98: Number of Years used to Calculate Normal Qualifier: 70: Mean of Observations at 0000 LST Qualifier: 73: Mean of Observations at 0300 LST Qualifier: 76: Mean of Observations at 0600 LST Qualifier: 79: Mean of Observations at 0900 LST Qualifier: 82: Mean of Observations at 1200 LST Qualifier: 85: Mean of Observations at 1500 LST Qualifier: 88: Mean of Observations at 1800 LST Qualifier: 91: Mean of Observations at 2100 LST Qualifier: 94: Mean of 3-Hourly Observations ---------------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 1990 Qualifier: 70 73 76 79 82 85 88 91 94 Month ---------------------------------------------------------------------------------- Jan 14 14 30 30 30 30 30 30 14 Feb 14 14 30 30 30 30 30 30 14 Mar 14 14 30 30 30 30 30 30 14 Apr 14 14 30 30 30 30 30 30 14 May 14 14 30 30 30 30 30 30 14 Jun 14 14 30 30 30 30 30 30 14 Jul 15 15 30 30 30 30 30 30 15 Aug 15 15 30 30 30 30 30 30 15 Sep 15 15 30 30 30 30 30 30 15 Oct 15 15 30 30 30 30 30 30 15 Nov 15 15 30 30 30 30 30 30 15 Dec 15 15 30 30 30 30 30 30 15 Annual 14 14 30 30 30 30 30 30 14 Ann-NCDC NA NA NA NA NA NA NA NA NA ---------------------------------------------------------------------------------- Element 12: Sea Level Pressure (hPa) MN3HRLY (Statistic 94): Mean of 3-Hourly Observations #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MN3HRLY #_YEARS Month -------------------------- Jan 1021.1 14 Feb 1020.9 14 Mar 1016.0 14 Apr 1014.2 14 May 1012.8 14 Jun 1012.8 14 Jul 1014.0 15 Aug 1014.6 15 Sep 1015.6 15 Oct 1017.5 15 Nov 1017.8 15 Dec 1020.3 15 Annual 1016.4 14 Ann-NCDC 1016.5 NA -------------------------- Element 16: Wind Speed (m/sec) MN3HRLY (Statistic 94): Mean of 3-Hourly Observations ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 5.5 Feb 5.3 Mar 5.9 Apr 5.9 May 5.3 Jun 4.8 Jul 4.4 Aug 4.5 Sep 4.8 Oct 4.9 Nov 5.3 Dec 5.4 Annual 5.2 Ann-NCDC 5.2 ------------------ Element 17: Wind Direction (degrees) Statistic 38: Frequency Qualifier: 000.0 degrees Qualifier: 022.5 degrees Qualifier: 045.0 degrees Qualifier: 067.5 degrees Qualifier: 090.0 degrees Qualifier: 112.5 degrees Qualifier: 135.0 degrees Qualifier: 157.5 degrees Qualifier: 180.0 degrees ---------------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 1990 Qualifier: 000.0 022.5 045.0 067.5 090.0 112.5 135.0 157.5 180.0 Month ---------------------------------------------------------------------------------- Jan .048 .022 .012 .015 .022 .023 .036 .048 .065 Feb .052 .029 .024 .024 .030 .041 .054 .057 .086 Mar .033 .044 .035 .037 .043 .059 .054 .069 .089 Apr .038 .042 .035 .040 .050 .060 .056 .060 .090 May .049 .038 .033 .030 .044 .068 .074 .099 .132 Jun .054 .033 .030 .037 .044 .066 .062 .082 .142 Jul .065 .033 .038 .040 .042 .059 .084 .102 .166 Aug .063 .026 .026 .028 .038 .055 .076 .115 .174 Sep .062 .030 .024 .024 .032 .048 .062 .088 .154 Oct .072 .031 .024 .018 .023 .041 .062 .072 .098 Nov .052 .031 .026 .021 .028 .044 .049 .059 .089 Dec .051 .023 .016 .015 .018 .029 .036 .048 .080 Annual NA NA NA NA NA NA NA NA NA Ann-NCDC NA NA NA NA NA NA NA NA NA ---------------------------------------------------------------------------------- Element 17: Wind Direction (degrees) Statistic 38: Frequency Qualifier: 202.5 degrees Qualifier: 225.0 degrees Qualifier: 247.5 degrees Qualifier: 270.0 degrees Qualifier: 292.5 degrees Qualifier: 315.0 degrees Qualifier: 337.5 degrees Qualifier: 360.0 degrees -------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 Qualifier: 202.5 225.0 247.5 270.0 292.5 315.0 337.5 360.0 Month -------------------------------------------------------------------------- Jan .066 .054 .049 .063 .093 .145 .162 .078 Feb .063 .040 .030 .050 .074 .108 .144 .094 Mar .059 .034 .028 .041 .063 .097 .126 .088 Apr .069 .033 .024 .048 .061 .088 .113 .091 May .071 .033 .023 .034 .048 .061 .080 .082 Jun .093 .047 .028 .039 .049 .060 .073 .061 Jul .112 .044 .025 .029 .031 .033 .046 .052 Aug .113 .045 .027 .039 .037 .038 .047 .054 Sep .109 .040 .024 .037 .050 .063 .080 .074 Oct .077 .041 .028 .041 .082 .089 .115 .085 Nov .078 .040 .036 .054 .087 .100 .120 .086 Dec .073 .049 .041 .066 .092 .133 .144 .085 Annual NA NA NA NA NA NA NA NA Ann-NCDC NA NA NA NA NA NA NA NA -------------------------------------------------------------------------- Element 17: Wind Direction (degrees) PREVAIL (Statistic 41): Prevailing #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: PREVAIL #_YEARS Month -------------------------- Jan 337.5 15 Feb 337.5 15 Mar 337.5 15 Apr 337.5 15 May 180.0 15 Jun 180.0 15 Jul 180.0 16 Aug 180.0 16 Sep 180.0 16 Oct 337.5 16 Nov 337.5 16 Dec 337.5 16 Annual 180.0 NA Ann-NCDC NA NA -------------------------- Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .1 Feb .1 Mar .9 Apr 3.4 May 7.4 Jun 9.2 Jul 9.8 Aug 8.9 Sep 5.4 Oct 1.9 Nov .3 Dec .1 Annual 47.5 Ann-NCDC 47.5 ------------------ Element 61: Number Days with Haze/Smoke (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1.9 Feb 4.9 Mar 5.6 Apr 4.1 May 4.8 Jun 4.6 Jul 6.6 Aug 7.0 Sep 4.8 Oct 3.9 Nov 3.0 Dec 2.8 Annual 54.0 Ann-NCDC 54.0 ------------------ Element 63: Number Days with Blowing Dust/Sand (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .1 Feb .0 Mar .3 Apr .1 May .4 Jun .2 Jul .1 Aug .1 Sep .1 Oct .2 Nov .0 Dec .0 Annual 1.6 Ann-NCDC 1.6 ------------------ Element 83: Number Days Maximum Temperature GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 10.0 deg C Qualifier: 35.0 deg C -------------------------- byr: 1961 1961 eyr: 1990 1990 Qualifier: 10.0 35.0 Month -------------------------- Jan 2.5 .0 Feb 4.6 .0 Mar 11.9 .0 Apr 24.3 .1 May 30.6 .2 Jun 30.0 2.6 Jul 31.0 5.5 Aug 31.0 3.1 Sep 29.7 .7 Oct 27.4 .1 Nov 12.5 .0 Dec 4.1 .0 Annual 239.6 12.3 Ann-NCDC 239.6 12.3 -------------------------- Element 85: Number Days Minimum Temperature LE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 0.0 deg C Qualifier: 10.0 deg C -------------------------- byr: 1961 1961 eyr: 1990 1990 Qualifier: 0.0 10.0 Month -------------------------- Jan 30.8 31.0 Feb 26.9 28.0 Mar 24.1 30.7 Apr 9.3 27.4 May .9 17.2 Jun .0 4.1 Jul .0 .6 Aug .0 1.7 Sep .7 14.6 Oct 7.8 28.3 Nov 23.2 29.8 Dec 30.4 31.0 Annual 154.1 244.4 Ann-NCDC 154.1 244.4 -------------------------- Element 95: Number Days with Precipitation GE Threshold (count) Qualifier: 1.0 mm MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2.9 Feb 3.9 Mar 5.5 Apr 6.9 May 8.8 Jun 7.9 Jul 7.4 Aug 6.8 Sep 6.4 Oct 4.7 Nov 3.4 Dec 4.4 Annual 69.0 Ann-NCDC 69.0 ------------------ Element 97: Number Days with Freezing Rain/Drizzle (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .5 Feb .5 Mar .8 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .7 Dec 1.4 Annual 3.9 Ann-NCDC 3.9 ------------------ Element 98: Number Days with Blowing Snow (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 3.3 Feb 1.9 Mar 2.0 Apr .5 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov 1.0 Dec 2.4 Annual 11.1 Ann-NCDC 11.1 ------------------ Element AA: Number Days with Rain/Drizzle (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 3.0 Feb 3.9 Mar 8.5 Apr 13.2 May 15.8 Jun 13.1 Jul 13.5 Aug 13.5 Sep 12.3 Oct 9.2 Nov 6.6 Dec 3.8 Annual 116.4 Ann-NCDC 116.4 ------------------ Element AB: Number Days with Snow/Hail (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 13.6 Feb 12.1 Mar 9.6 Apr 3.2 May .1 Jun .0 Jul .0 Aug .0 Sep .3 Oct 1.1 Nov 6.9 Dec 13.3 Annual 60.2 Ann-NCDC 60.2 ------------------ Element AC: Number Days with Fog/Mist (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 6.5 Feb 9.7 Mar 12.1 Apr 9.7 May 10.3 Jun 7.8 Jul 9.2 Aug 13.1 Sep 10.9 Oct 8.7 Nov 9.6 Dec 9.3 Annual 116.9 Ann-NCDC 116.9 ------------------ Element AD: Number Days with Weather Phenomena (count) #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 19 Feb 19 Mar 18 Apr 18 May 18 Jun 18 Jul 19 Aug 19 Sep 19 Oct 19 Nov 19 Dec 18 Annual NA Ann-NCDC NA ------------------