Global Rankings

Global Data Info
-90.0 to 90.0
-180.0 to 180.0

Please note, global and hemispheric temperature anomalies are with respect to the 1901-2000 average. Coordinate temperature anomalies are with respect to the 1991-2020 average. All other regional temperature anomalies are with respect to the 1910-2000 average. Monthly precipitation data are not available until a few days after temperature data are released.

Northern Hemisphere Ocean

December 1999 Average Temperature Anomalies Rankings

View Period (Months):
  • Record Coolest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Warmest
PeriodAnomaly
(1901-2000)
Rank
(1850-2025)
Coolest/Warmest
Since		Record
December 1999
1-Month
0.21°C
(0.38°F)
128th Coolest
Coolest since:
1904
48th Warmest
Warmest since:
2023
Nov–Dec 1999
2-Month
0.22°C
(0.40°F)
133rd Coolest
Coolest since:
1904
43rd Warmest
Warmest since:
2023
Ties: 1851, 1951, 1989
Oct–Dec 1999
3-Month
0.23°C
(0.41°F)
134th Coolest
Coolest since:
1904
42nd Warmest
Warmest since:
2023
Sep–Dec 1999
4-Month
0.25°C
(0.45°F)
138th Coolest
Coolest since:
1904, 1912
38th Warmest
Warmest since:
2023
Ties: 1957
Aug–Dec 1999
5-Month
0.26°C
(0.47°F)
140th Coolest
Coolest since:
1904
36th Warmest
Warmest since:
2023
Ties: 1852, 1940, 1945, 1957, 1996
Jul–Dec 1999
6-Month
0.26°C
(0.47°F)
138th Coolest
Coolest since:
1904
38th Warmest
Warmest since:
2023
Ties: 1852, 1945, 1996
Jun–Dec 1999
7-Month
0.26°C
(0.47°F)
137th Coolest
Coolest since:
1904
39th Warmest
Warmest since:
2023
Ties: 1945, 1957
May–Dec 1999
8-Month
0.26°C
(0.47°F)
138th Coolest
Coolest since:
1904
38th Warmest
Warmest since:
2023
Ties: 1989
Apr–Dec 1999
9-Month
0.27°C
(0.49°F)
140th Coolest
Coolest since:
1904
36th Warmest
Warmest since:
2023
Ties: 1945, 1996
Mar–Dec 1999
10-Month
0.27°C
(0.49°F)
140th Coolest
Coolest since:
1904
36th Warmest
Warmest since:
2024
Ties: 1945, 1996
Feb–Dec 1999
11-Month
0.28°C
(0.50°F)
140th Coolest
Coolest since:
1904
36th Warmest
Warmest since:
2024
Jan–Dec 1999
12-Month
0.28°C
(0.50°F)
141st Coolest
Coolest since:
1904
35th Warmest
Warmest since:
2024
Ties: 1878, 1944, 1945
Jul 1998–Dec 1999
18-Month
0.34°C
(0.61°F)
146th Coolest
Coolest since:
1904, 1909
29th Warmest
Warmest since:
2024
Ties: 1991
Jan 1998–Dec 1999
24-Month
0.40°C
(0.72°F)
150th Coolest
Coolest since:
1909, 1910
25th Warmest
Warmest since:
2024
Jan 1997–Dec 1999
36-Month
0.43°C
(0.77°F)
151st Coolest
Coolest since:
1910
23rd WarmestWarmest to Date2024
Jan 1996–Dec 1999
48-Month
0.39°C
(0.70°F)
148th Coolest
Coolest since:
1911
25th Warmest
Warmest since:
2024
Jan 1995–Dec 1999
60-Month
0.38°C
(0.68°F)
146th Coolest
Coolest since:
1911, 1912
26th Warmest
Warmest since:
2024

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