Regional Rankings

Regional Data Info
Please note, 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.

Ohio Valley

December 1909 Average Temperature Rankings

View Period (Months):
  • Record Coolest
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  • Bottom ⅓
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  • Top ⅓
  • Top ⅒
  • Record Warmest
PeriodValue
1901-2000
Mean
AnomalyRank
(1895-2025)
Coolest/Warmest
Since
Record
December 1909
1-Month
25.1°F
(-3.8°C)
33.0°F
(0.6°C)
-7.9°F6th CoolestCoolest to Date1989
125th Warmest
Warmest since:
2015
Nov–Dec 1909
2-Month
37.9°F
(3.3°C)
38.0°F
(3.3°C)
-0.1°F54th Coolest
Coolest since:
1976
77th Warmest
Warmest since:
2015
Oct–Dec 1909
3-Month
42.7°F
(5.9°C)
43.9°F
(6.6°C)
-1.2°F28th Coolest
Coolest since:
1976
103rd Warmest
Warmest since:
1931
Sep–Dec 1909
4-Month
48.4°F
(9.1°C)
49.7°F
(9.8°C)
-1.3°F24th Coolest
Coolest since:
1976
107th Warmest
Warmest since:
1931
Aug–Dec 1909
5-Month
53.8°F
(12.1°C)
54.5°F
(12.5°C)
-0.7°F36th Coolest
Coolest since:
1976
95th Warmest
Warmest since:
1931
Jul–Dec 1909
6-Month
57.1°F
(13.9°C)
58.0°F
(14.4°C)
-0.9°F26th Coolest
Coolest since:
1976
105th Warmest
Warmest since:
1931
Jun–Dec 1909
7-Month
59.2°F
(15.1°C)
60.0°F
(15.6°C)
-0.8°F27th Coolest
Coolest since:
1976
104th Warmest
Warmest since:
1931
May–Dec 1909
8-Month
59.5°F
(15.3°C)
60.3°F
(15.7°C)
-0.8°F26th Coolest
Coolest since:
1917
105th Warmest
Warmest since:
1931
Apr–Dec 1909
9-Month
58.7°F
(14.8°C)
59.5°F
(15.3°C)
-0.8°F25th Coolest
Coolest since:
1917
106th Warmest
Warmest since:
1931, 2024
Mar–Dec 1909
10-Month
56.9°F
(13.8°C)
57.8°F
(14.3°C)
-0.9°F22nd Coolest
Coolest since:
1917
109th Warmest
Warmest since:
2024
Feb–Dec 1909
11-Month
55.1°F
(12.8°C)
55.5°F
(13.1°C)
-0.4°F41st Coolest
Coolest since:
1917
90th Warmest
Warmest since:
2024
Jan–Dec 1909
12-Month
53.3°F
(11.8°C)
53.4°F
(11.9°C)
-0.1°F55th Coolest
Coolest since:
1917
76th Warmest
Warmest since:
2024
Jul 1908–Dec 1909
18-Month
55.1°F
(12.8°C)
54.9°F
(12.7°C)
0.2°F66th Coolest
Coolest since:
1904
64th Warmest
Warmest since:
2024
Jan 1908–Dec 1909
24-Month
53.7°F
(12.1°C)
53.4°F
(11.9°C)
0.3°F77th Coolest
Coolest since:
1979
53rd Warmest
Warmest since:
2024
Jan 1907–Dec 1909
36-Month
53.4°F
(11.9°C)
53.4°F
(11.9°C)
0.0°F56th Coolest
Coolest since:
1980
73rd Warmest
Warmest since:
2024
Jan 1906–Dec 1909
48-Month
53.4°F
(11.9°C)
53.4°F
(11.9°C)
0.0°F51st Coolest
Coolest since:
1979
77th Warmest
Warmest since:
2024
Jan 1905–Dec 1909
60-Month
53.2°F
(11.8°C)
53.4°F
(11.9°C)
-0.2°F39th Coolest
Coolest since:
1980
88th Warmest
Warmest since:
2024

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