Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

California River Basin

Average Temperature Rankings, October 1998

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
October 1998
1-Month		57.7°F
(14.3°C)		59.5°F
(15.3°C)		-1.8°F
(-1.0°C)		24th Coolest
Coolest since:
1916
105th Warmest
Warmest since:
2020
Ties: 1935
Sep–Oct 1998
2-Month		63.5°F
(17.5°C)		64.0°F
(17.8°C)		-0.5°F
(-0.3°C)		39th Coolest
Coolest since:
1916, 1920
90th Warmest
Warmest since:
2020
Ties: 1928, 1940, 1989
Aug–Oct 1998
3-Month		68.0°F
(20.0°C)		67.3°F
(19.6°C)		0.7°F
(0.4°C)		84th Coolest
Coolest since:
1900
45th Warmest
Warmest since:
2020
Ties: 1929, 1945, 1960, 1977, 1993
Jul–Oct 1998
4-Month		70.0°F
(21.1°C)		69.1°F
(20.6°C)		0.9°F
(0.5°C)		88th Coolest
Coolest since:
1912
41st Warmest
Warmest since:
2020
Ties: 1934, 2019
Jun–Oct 1998
5-Month		69.1°F
(20.6°C)		68.9°F
(20.5°C)		0.2°F
(0.1°C)		56th Coolest
Coolest since:
1912
73rd Warmest
Warmest since:
2020
Ties: 1951, 1964, 1969, 1983, 1985
May–Oct 1998
6-Month		66.7°F
(19.3°C)		67.6°F
(19.8°C)		-0.9°F
(-0.5°C)		20th Coolest
Coolest since:
1916
109th Warmest
Warmest since:
2020
Ties: 1895, 1927, 1944, 1971
Apr–Oct 1998
7-Month		64.6°F
(18.1°C)		65.6°F
(18.7°C)		-1.0°F
(-0.6°C)		17th Coolest
Coolest since:
1912
112th Warmest
Warmest since:
2020
Ties: 1905, 1909, 1971
Mar–Oct 1998
8-Month		62.7°F
(17.1°C)		63.5°F
(17.5°C)		-0.8°F
(-0.4°C)		22nd Coolest
Coolest since:
1912
107th Warmest
Warmest since:
2014, 2015
Ties: 1895, 1900, 1919, 1955
Feb–Oct 1998
9-Month		60.5°F
(15.8°C)		61.5°F
(16.4°C)		-1.0°F
(-0.6°C)		18th Coolest
Coolest since:
1912
111th Warmest
Warmest since:
2015
Jan–Oct 1998
10-Month		59.0°F
(15.0°C)		59.6°F
(15.3°C)		-0.6°F
(-0.3°C)		29th Coolest
Coolest since:
1911, 1912
100th Warmest
Warmest since:
2015
Ties: 1915, 1927, 1941, 1942, 1946, 1956, 1965
Dec 1997–Oct 1998
11-Month		57.5°F
(14.2°C)		58.1°F
(14.5°C)		-0.6°F
(-0.3°C)		28th Coolest
Coolest since:
1912
100th Warmest
Warmest since:
2015
Ties: 1897, 1898, 1925, 1927
Nov 1997–Oct 1998
12-Month		57.0°F
(13.9°C)		57.4°F
(14.1°C)		-0.4°F
(-0.2°C)		39th Coolest
Coolest since:
1912
89th Warmest
Warmest since:
2015
Ties: 1906, 1941, 1956, 1979
May 1997–Oct 1998
18-Month		61.0°F
(16.1°C)		60.8°F
(16.0°C)		0.2°F
(0.1°C)		69th Coolest
Coolest since:
1912
59th Warmest
Warmest since:
2015
Ties: 1905, 1930, 1935, 1943, 1977
Nov 1996–Oct 1998
24-Month		58.2°F
(14.6°C)		57.4°F
(14.1°C)		0.8°F
(0.5°C)		93rd Coolest
Coolest since:
1912, 1949
34th Warmest
Warmest since:
2015
Ties: 1961, 1978, 1982, 1989, 1990
Nov 1995–Oct 1998
36-Month		58.8°F
(14.9°C)		57.4°F
(14.1°C)		1.4°F
(0.8°C)		109th Coolest
Coolest since:
1913
17th Warmest
Warmest since:
2016
Nov 1994–Oct 1998
48-Month		58.5°F
(14.7°C)		57.4°F
(14.1°C)		1.1°F
(0.6°C)		105th Coolest
Coolest since:
1912, 1913
20th Warmest
Warmest since:
2017
Ties: 1961
Nov 1993–Oct 1998
60-Month		58.5°F
(14.7°C)		57.4°F
(14.1°C)		1.1°F
(0.6°C)		102nd Coolest
Coolest since:
1913
22nd Warmest
Warmest since:
2018
Ties: 1992, 2012

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