Statewide Rankings

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

Wyoming

Average Temperature Rankings, December 1999

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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1999
1-Month
25.2°F
(-3.8°C)
20.6°F
(-6.3°C)
4.6°F
(2.5°C)
115th Coolest
Coolest since:
1909, 1983
14th Warmest
Warmest since:
1980
Ties: 1959
Nov–Dec 1999
2-Month
32.0°F
(0.0°C)
24.8°F
(-4.0°C)
7.2°F
(4.0°C)
128th Coolest
Coolest since:
1978
1st Warmest
Warmest to Date
1999
Oct–Dec 1999
3-Month
36.3°F
(2.4°C)
30.7°F
(-0.7°C)
5.6°F
(3.1°C)
128th Coolest
Coolest since:
1919
1st Warmest
Warmest to Date
1999
Sep–Dec 1999
4-Month
40.0°F
(4.4°C)
36.4°F
(2.4°C)
3.6°F
(2.0°C)
124th Coolest
Coolest since:
1919
5th Warmest
Warmest since:
2021
Aug–Dec 1999
5-Month
45.0°F
(7.2°C)
41.8°F
(5.4°C)
3.2°F
(1.8°C)
125th Coolest
Coolest since:
1916, 1985
4th Warmest
Warmest since:
2021
Ties: 1939
Jul–Dec 1999
6-Month
48.5°F
(9.2°C)
45.7°F
(7.6°C)
2.8°F
(1.6°C)
122nd Coolest
Coolest since:
1911
7th Warmest
Warmest since:
2021
Jun–Dec 1999
7-Month
49.7°F
(9.8°C)
47.5°F
(8.6°C)
2.2°F
(1.2°C)
116th Coolest
Coolest since:
1916
13th Warmest
Warmest since:
2021
May–Dec 1999
8-Month
49.3°F
(9.6°C)
47.6°F
(8.7°C)
1.7°F
(0.9°C)
109th Coolest
Coolest since:
1916
20th Warmest
Warmest since:
2021
Apr–Dec 1999
9-Month
47.9°F
(8.8°C)
46.6°F
(8.1°C)
1.3°F
(0.7°C)
99th Coolest
Coolest since:
1916
30th Warmest
Warmest since:
2021
Mar–Dec 1999
10-Month
46.5°F
(8.1°C)
44.8°F
(7.1°C)
1.7°F
(1.0°C)
108th Coolest
Coolest since:
1912
21st Warmest
Warmest since:
2012
Ties: 1900, 2004
Feb–Dec 1999
11-Month
44.8°F
(7.1°C)
42.7°F
(5.9°C)
2.1°F
(1.2°C)
116th Coolest
Coolest since:
1912
13th Warmest
Warmest since:
2012
Ties: 1954
Jan–Dec 1999
12-Month
43.2°F
(6.2°C)
40.8°F
(4.9°C)
2.4°F
(1.3°C)
121st Coolest
Coolest since:
1895
8th Warmest
Warmest since:
2012
Ties: 2001, 2006, 2017
Jul 1998–Dec 1999
18-Month
44.9°F
(7.2°C)
42.4°F
(5.8°C)
2.5°F
(1.4°C)
121st Coolest
Coolest since:
1912
7th Warmest
Warmest since:
1934
Jan 1998–Dec 1999
24-Month
42.8°F
(6.0°C)
40.7°F
(4.8°C)
2.1°F
(1.2°C)
116th Coolest
Coolest since:
1917
12th Warmest
Warmest since:
2016
Ties: 1935, 1981, 2000, 2018
Jan 1997–Dec 1999
36-Month
42.3°F
(5.7°C)
40.7°F
(4.8°C)
1.6°F
(0.9°C)
108th Coolest
Coolest since:
1913, 1917, 1918
19th Warmest
Warmest since:
2017
Ties: 2004
Jan 1996–Dec 1999
48-Month
42.0°F
(5.6°C)
40.7°F
(4.8°C)
1.3°F
(0.8°C)
101st Coolest
Coolest since:
1898
25th Warmest
Warmest since:
2018
Ties: 2009
Jan 1995–Dec 1999
60-Month
41.9°F
(5.5°C)
40.7°F
(4.8°C)
1.2°F
(0.7°C)
100th Coolest
Coolest since:
1899
25th Warmest
Warmest since:
2016
Ties: 1998, 2012

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