Station Name: SHAHROUD
WMO Station Number: 40739
National I.D. Number:
Country: IRAN, ISLAMIC REPUBLIC OF
WMO Region: REGION II - ASIA
Latitude: 36d 25m N
Longitude: 055d 02m E
Elevation: 1345 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
MEANDLY (Statistic 06): Mean Daily Value
SD_DLY (Statistic 08): Standard Deviation of Mean Daily Value
MNDLYMX (Statistic 09): Mean Daily Maximum Value
MNDLYMI (Statistic 10): Mean Daily Minimum Value
--------------------------------------------------
byr: 1961 1961 1961 1961 1961
eyr: 1990 1990 1990 1990 1990
Statistic: MEAN MEANDLY SD_DLY MNDLYMX MNDLYMI
Month
--------------------------------------------------
Jan 1.0 1.1 2.41 5.8 -3.6
Feb 3.4 3.3 2.49 8.4 -1.9
Mar 8.6 8.4 1.84 14.3 2.5
Apr 15.1 14.5 1.45 21.1 7.9
May 20.3 19.6 1.59 26.5 12.7
Jun 25.0 24.2 1.38 31.3 17.1
Jul 27.3 26.7 1.24 33.5 20.0
Aug 26.0 25.5 1.25 32.4 18.5
Sep 22.1 21.6 1.04 29.2 14.0
Oct 15.3 15.2 1.46 22.3 8.0
Nov 9.0 8.9 1.59 15.1 2.6
Dec 3.1 3.3 1.77 8.2 -1.5
Annual 14.7 14.4 1.63 20.7 8.0
Ann-NCDC 14.7 14.4 NA 20.7 8.0
--------------------------------------------------
Element 02: Maximum Dry Bulb Temperature (deg C)
MAX_VAL (Statistic 04): Maximum Value
DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value
--------------------------
byr: 1961 1961
eyr: 1990 1990
Statistic: MAX_VAL DATEMAX
Month
--------------------------
Jan 19.0 196327
Feb 20.0 196320
Mar 29.0 197720
Apr 31.4 198523
May 36.0 197028
Jun 39.0 197024
Jul 42.0 198328
Aug 42.0 198315
Sep 37.0 197911
Oct 32.0 197001
Nov 24.0 197008
Dec 19.2 198808
Annual 42.0 NA
Ann-NCDC NA NA
--------------------------
Element 03: Minimum Dry Bulb Temperature (deg C)
MIN_VAL (Statistic 05): Minimum Value
DATEMIN (Statistic 14): Date (Year/Day) of Occurrence of Minimum Daily Value
--------------------------
byr: 1961 1961
eyr: 1990 1990
Statistic: MIN_VAL DATEMIN
Month
--------------------------
Jan -14.0 196420
Feb -14.0 196807
Mar -8.8 198511
Apr -7.0 196703
May -1.0 197901
Jun 6.0 196707
Jul 10.0 196814
Aug 8.0 196828
Sep 2.0 196913
Oct -3.0 197724
Nov -10.0 196919
Dec -11.0 196329
Annual -14.0 NA
Ann-NCDC NA NA
--------------------------
Element 05: Dew Point Temperature (deg C)
MEAN (Statistic 01): Mean Value
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan -5.3
Feb -4.4
Mar -1.9
Apr 2.3
May 6.1
Jun 8.2
Jul 10.0
Aug 9.1
Sep 6.7
Oct 3.6
Nov -0.7
Dec -3.6
Annual 2.5
Ann-NCDC 2.5
------------------
Element 06: Precipitation (mm)
MEANMLY (Statistic 15): Mean Monthly Value
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan 28.6
Feb 19.3
Mar 28.0
Apr 23.7
May 21.5
Jun 3.9
Jul 1.5
Aug 1.8
Sep 2.3
Oct 7.9
Nov 9.4
Dec 19.8
Annual 167.7
Ann-NCDC 167.7
------------------
Element 08: Maximum 24-Hour Precipitation (mm)
MAX_VAL (Statistic 04): Maximum Value
DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value
--------------------------
byr: 1961 1961
eyr: 1990 1990
Statistic: MAX_VAL DATEMAX
Month
--------------------------
Jan 260.0 197909
Feb 30.3 198012
Mar 36.0 197218
Apr 34.0 197524
May 33.0 197210
Jun 11.0 196204
Jul 7.0 197024
Aug 15.0 197730
Sep 11.6 198802
Oct 18.1 196307
Nov 30.0 197529
Dec 41.0 197916
Annual 260.0 NA
Ann-NCDC NA NA
--------------------------
Element 11: Relative Humidity (%)
MEAN (Statistic 01): Mean Value
MNDLYMX (Statistic 09): Mean Daily Maximum Value
MNDLYMI (Statistic 10): Mean Daily Minimum Value
----------------------------------
byr: 1961 1961 1961
eyr: 1990 1990 1990
Statistic: MEAN MNDLYMX MNDLYMI
Month
----------------------------------
Jan 65.0 80.0 51.0
Feb 59.0 78.0 44.0
Mar 51.0 71.0 36.0
Apr 45.0 64.0 31.0
May 42.0 60.0 29.0
Jun 37.0 53.0 25.0
Jul 36.0 51.0 24.0
Aug 37.0 53.0 24.0
Sep 39.0 58.0 25.0
Oct 48.0 70.0 32.0
Nov 53.0 73.0 37.0
Dec 64.0 80.0 48.0
Annual 48.0 66.0 34.0
Ann-NCDC 48.0 65.9 33.8
----------------------------------
Element 12: Sea Level Pressure (hPa)
MEAN (Statistic 01): Mean Value
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan 1021.8
Feb 1019.7
Mar 1014.6
Apr 1009.6
May 1007.9
Jun 1003.0
Jul 1001.2
Aug 1003.7
Sep 1008.7
Oct 1015.9
Nov 1019.3
Dec 1021.4
Annual 1012.2
Ann-NCDC 1012.2
------------------
Element 13: Station Pressure (hPa)
MEAN (Statistic 01): Mean Value
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan 865.7
Feb 864.4
Mar 863.3
Apr 862.8
May 863.6
Jun 861.7
Jul 861.0
Aug 862.5
Sep 865.3
Oct 867.8
Nov 868.1
Dec 866.4
Annual 864.4
Ann-NCDC 864.4
------------------
Element 14: Vapor Pressure (hPa)
MEAN (Statistic 01): Mean Value
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan 4.27
Feb 4.62
Mar 5.60
Apr 7.47
May 9.68
Jun 11.14
Jul 12.50
Aug 11.86
Sep 10.09
Oct 8.16
Nov 6.06
Dec 4.86
Annual 8.03
Ann-NCDC 8.0
------------------
Element 15: Sunshine
MN_#HRS (Statistic 44): Mean Number of Hours
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan 167.5
Feb 174.4
Mar 212.1
Apr 230.3
May 279.2
Jun 330.1
Jul 340.4
Aug 337.4
Sep 294.8
Oct 252.2
Nov 205.9
Dec 170.3
Annual 2994.6
Ann-NCDC 2994.6
------------------
Element 16: Wind Speed (m/sec)
MEAN (Statistic 01): Mean Value
MAXGUST (Statistic 30): Maximum Gust
VECTOR (Statistic 42): Vector
----------------------------------
byr: 1961 1961 1961
eyr: 1990 1990 1990
Statistic: MEAN MAXGUST VECTOR
Month
----------------------------------
Jan 3.8 18.0 .2
Feb 4.3 12.9 .2
Mar 5.4 15.4 .2
Apr 5.5 20.6 .3
May 5.5 15.4 .9
Jun 6.3 16.0 2.1
Jul 6.7 14.9 2.7
Aug 6.2 18.0 2.5
Sep 4.8 17.0 1.5
Oct 3.8 10.3 .5
Nov 3.5 17.0 .2
Dec 3.4 10.3 .2
Annual 4.9 20.6 .9
Ann-NCDC 4.9 NA NA
----------------------------------
Element 17: Wind Direction (degrees)
MAXGUST (Statistic 30): Maximum Gust
PREVAIL (Statistic 41): Prevailing
VECTOR (Statistic 42): Vector
----------------------------------
byr: 1961 1961 1961
eyr: 1990 1990 1990
Statistic: MAXGUST PREVAIL VECTOR
Month
----------------------------------
Jan 270.0 45.0 114.0
Feb 210.0 225.0 155.0
Mar 230.0 225.0 131.0
Apr 230.0 45.0 99.0
May 220.0 45.0 50.0
Jun 240.0 45.0 44.0
Jul 300.0 45.0 41.0
Aug 50.0 45.0 44.0
Sep 90.0 45.0 51.0
Oct 180.0 45.0 67.0
Nov 230.0 225.0 139.0
Dec 210.0 225.0 166.0
Annual 230.0 45.0 53.0
Ann-NCDC NA NA NA
----------------------------------
Element 17: Wind Direction (degrees)
Qualifier: 41: Prevailing
MEAN% (Statistic 57): Mean Percent
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan 16.5
Feb 17.2
Mar 19.0
Apr 20.5
May 26.4
Jun 37.3
Jul 43.4
Aug 41.9
Sep 30.6
Oct 18.5
Nov 15.6
Dec 16.9
Annual 24.9
Ann-NCDC NA
------------------
Element 18: Wind Steadiness (unitless)
MEAN% (Statistic 57): Mean Percent
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan 10.5
Feb 9.3
Mar 7.4
Apr 9.1
May 32.7
Jun 63.5
Jul 77.6
Aug 77.4
Sep 60.4
Oct 23.7
Nov 11.4
Dec 11.8
Annual 34.7
Ann-NCDC NA
------------------
Element 48: Calm Winds
MEAN% (Statistic 57): Mean Percent
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan 29.0
Feb 25.0
Mar 18.2
Apr 16.3
May 13.6
Jun 9.9
Jul 7.6
Aug 10.7
Sep 20.3
Oct 29.4
Nov 31.5
Dec 33.5
Annual 20.4
Ann-NCDC NA
------------------
Element 51: Number Days with Thunder (count)
MEANMLY (Statistic 15): Mean Monthly Value
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan 0.0
Feb 0.1
Mar 0.8
Apr 1.8
May 3.7
Jun 1.8
Jul 0.6
Aug 0.6
Sep 0.7
Oct 1.0
Nov 0.4
Dec 0.2
Annual 11.7
Ann-NCDC 11.7
------------------
Element 56: Number Days with Snowfall (count)
MEANMLY (Statistic 15): Mean Monthly Value
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan 4.2
Feb 3.1
Mar 1.3
Apr 0.2
May 0.0
Jun 0.0
Jul 0.0
Aug 0.0
Sep 0.0
Oct 0.0
Nov 0.3
Dec 2.6
Annual 11.7
Ann-NCDC 11.7
------------------
Element 62: Number Days with Dust (count)
MEANMLY (Statistic 15): Mean Monthly Value
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan 0.1
Feb 0.3
Mar 0.9
Apr 1.8
May 1.2
Jun 1.4
Jul 1.9
Aug 1.6
Sep 0.8
Oct 0.4
Nov 0.1
Dec 0.0
Annual 10.5
Ann-NCDC 10.5
------------------
Element 85: Number Days Minimum Temperature LE Threshold (count)
Qualifier: 0.0 deg C
MEANMLY (Statistic 15): Mean Monthly Value
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan 27.5
Feb 20.5
Mar 9.4
Apr 0.7
May 0.0
Jun 0.0
Jul 0.0
Aug 0.0
Sep 0.0
Oct 0.6
Nov 8.5
Dec 22.5
Annual 89.7
Ann-NCDC 89.7
------------------
Element 95: Number Days with Precipitation GE Threshold (count)
Statistic 15: Mean Monthly Value
Qualifier: 1.0 mm
Qualifier: 5.0 mm
Qualifier: 10.0 mm
----------------------------------
byr: 1961 1961 1961
eyr: 1990 1990 1990
Qualifier: 1.0 5.0 10.0
Month
----------------------------------
Jan 3.8 1.5 0.6
Feb 3.5 1.3 0.6
Mar 4.4 1.9 0.8
Apr 4.1 1.6 0.6
May 4.3 1.4 0.6
Jun 1.2 0.1 0.1
Jul 0.5 0.1 0.0
Aug 0.3 0.1 0.1
Sep 0.7 0.2 0.0
Oct 2.0 0.5 0.1
Nov 1.9 0.6 0.2
Dec 3.0 1.3 0.6
Annual 29.7 10.6 4.3
Ann-NCDC 29.7 10.6 4.3
----------------------------------
Element BT: Number Days with Occurrence of Rain (count)
Statistic 15: Mean Monthly Value
Qualifier:
------------------
byr: 1961
eyr: 1990
Month
------------------
Jan 7.1
Feb 6.8
Mar 8.3
Apr 8.2
May 9.1
Jun 3.6
Jul 1.8
Aug 1.5
Sep 1.9
Oct 4.8
Nov 4.5
Dec 6.0
Annual 63.6
Ann-NCDC 63.6
------------------