Climate at a Glance | Divisional Rankings | National Centers for Environmental Information (NCEI)

Divisional Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska or Hawaii. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Texas, Climate Division 7

December 1998 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1998 1-Month	0.29	0.23	0.06	78th Driest	Driest since: 1996	1970
December 1998 1-Month	0.29	0.23	0.06	53rd Wettest	Wettest since: 1997	1991
Nov–Dec 1998 2-Month	1.90	0.16	1.74	112th Driest	Driest since: 1997	2012
Nov–Dec 1998 2-Month	1.90	0.16	1.74	19th Wettest	Wettest since: 1991	1940
Oct–Dec 1998 3-Month	3.54	0.16	3.38	127th Driest	Driest since: 1997	1950
Oct–Dec 1998 3-Month	3.54	0.16	3.38	4th Wettest	Wettest since: 1960	1960
Sep–Dec 1998 4-Month	2.99	0.03	2.96	128th Driest	Driest since: 1997	2024
Sep–Dec 1998 4-Month	2.99	0.03	2.96	3rd Wettest	Wettest since: 1913	1913
Aug–Dec 1998 5-Month	2.98	-0.02	3.00	130th Driest	Driest since: 1997	2024
Aug–Dec 1998 5-Month	2.98	-0.02	3.00	1st Wettest	Wettest to Date	1998
Jul–Dec 1998 6-Month	2.03	-0.03	2.06	126th Driest	Driest since: 1997	1917
Jul–Dec 1998 6-Month	2.03	-0.03	2.06	5th Wettest	Wettest since: 1976	1919
Jun–Dec 1998 7-Month	1.27	-0.05	1.32	115th Driest	Driest since: 1997	1917
Jun–Dec 1998 7-Month	1.27	-0.05	1.32	16th Wettest	Wettest since: 1991	1919
May–Dec 1998 8-Month	0.72	-0.04	0.76	97th Driest	Driest since: 1996	1917
May–Dec 1998 8-Month	0.72	-0.04	0.76	34th Wettest	Wettest since: 1997	1919
Apr–Dec 1998 9-Month	0.50	-0.03	0.53	94th Driest	Driest since: 1996	2011
	0.50	-0.03	0.53	37th Wettest	Wettest since: 1997	1919
	Ties: 1986
Mar–Dec 1998 10-Month	0.52	-0.01	0.53	90th Driest	Driest since: 1996	2011
	0.52	-0.01	0.53	41st Wettest	Wettest since: 1997	1919
	Ties: 1985
Feb–Dec 1998 11-Month	0.74	-0.02	0.76	103rd Driest	Driest since: 1996	2011
Feb–Dec 1998 11-Month	0.74	-0.02	0.76	28th Wettest	Wettest since: 1997	1919
Jan–Dec 1998 12-Month	0.68	-0.03	0.71	103rd Driest	Driest since: 1996	1917
	0.68	-0.03	0.71	28th Wettest	Wettest since: 1997	1919
	Ties: 1926
Jul 1997–Dec 1998 18-Month	0.70	-0.03	0.73	108th Driest	Driest since: 1997	1956
	0.70	-0.03	0.73	22nd Wettest	Wettest since: 1997	1919
	Ties: 1997
Jan 1997–Dec 1998 24-Month	0.97	-0.03	1.00	117th Driest	Driest since: 1997	1917
Jan 1997–Dec 1998 24-Month	0.97	-0.03	1.00	13th Wettest	Wettest since: 1993	1992
Jan 1996–Dec 1998 36-Month	0.19	-0.02	0.21	85th Driest	Driest since: 1997	1956
	0.19	-0.02	0.21	44th Wettest	Wettest since: 1995	1993
	Ties: 1932
Jan 1995–Dec 1998 48-Month	0.18	-0.03	0.21	88th Driest	Driest since: 1997	1956
	0.18	-0.03	0.21	40th Wettest	Wettest since: 1995	1976
	Ties: 1959
Jan 1994–Dec 1998 60-Month	0.19	-0.03	0.22	90th Driest	Driest since: 1997	1956
	0.19	-0.03	0.22	37th Wettest	Wettest since: 1996	1976
	Ties: 1985

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 31, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings

Climate at a Glance Divisional Rankings

Divisional Rankings

Texas, Climate Division 7

December 1998 Palmer Z-Index Rankings

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