March 2026: Weather Records and Temperatures Against Normal
March 2026 is settled: the figures use data received up to 9 November 2026, more than 45 days after the month ended, so the late station reports are in. This page compares March 2026 at weather stations worldwide with each station's own 1991 to 2020 March normal, ranks it against March of every year since 1951, and lists the weather records, events and storms of the month.
Data as of . Last revised (2026-11-09).
Key Facts
- March 2026 is settled; its data run to 9 November 2026.
- In March 2026, stations worldwide averaged +0.7 C (+1.3 F) against their 1991 to 2020 March normals, the 11th warmest March in 76 ranked years from 1951 to 2026.
- The mean daily maximum in March 2026 was +0.2 C (+0.4 F) against normal and the mean daily minimum +1.2 C (+2.2 F).
- Among the continents in March 2026, North America was the warmest against normal, at +1.5 C (+2.7 F), and Oceania the coolest, at 0.0 C (-0.1 F).
- The station furthest above its March normal in March 2026 was Idaho Falls 16 SE (United States), at +9.0 C (+16.2 F); the furthest below was King Salmon (United States), at -12.0 C (-21.5 F).
- Of the 7,485 stations with a full month of rain data in March 2026, 31% had less than half their normal March rain and 12% had at least twice their normal; the median station had 77% of its normal.
- 49,586 weather records were set or tied in March 2026, including 40,367 record highs and 3,560 record lows of maximum and minimum temperature, and 59 all-time records.
- In March 2026, 92% of the daily temperature records were record highs (12 to 1 highs to lows), against an average of 73% for March in 2016 to 2025.
- 15 extreme weather events detected by this site overlapped March 2026.
- 5 named storms had a best track position in March 2026; 4 peaked at 64 kt (119 km/h, 74 mph) or more and 2 at 96 kt (178 km/h, 110 mph) or more over their lifetime.
- The Oceanic Nino Index for FMA 2026, the three months centred on March 2026, was +0.11: neutral, outside any El Nino or La Nina episode. NOAA's relative index (RONI) for the same season was -0.44.
- Monthly mean extent in March 2026: Arctic sea ice 14.13 million sq km (5.46 million sq mi), the 2nd lowest of 48 years for March; Antarctic sea ice 3.57 million sq km (1.38 million sq mi), the 13th lowest of 48 years for March.
- Carbon dioxide at Mauna Loa averaged 430.15 ppm in March 2026, 2.00 ppm more than in March 2025.
Temperature Against Normal
March 2026, against 1991 to 2020| Band | Stations on the map |
|---|---|
| More than 3 C (5.4 F) below normal | 64 |
| 1 to 3 C (1.8 to 5.4 F) below normal | 57 |
| Within 1 C (1.8 F) of normal | 502 |
| 1 to 3 C (1.8 to 5.4 F) above normal | 534 |
| More than 3 C (5.4 F) above normal | 784 |
| Area | Stations | Daily maximum vs normal | Daily minimum vs normal | Mean vs normal | Rank for March (1 is warmest) |
|---|---|---|---|---|---|
| World | 5,909 | +0.2 C (+0.4 F) | +1.2 C (+2.2 F) | +0.7 C (+1.3 F) | 11th of 76 |
| Africa | 14 | n/a | n/a | n/a | n/a |
| Asia | 223 | -1.1 C (-1.9 F) | +1.6 C (+2.9 F) | +0.3 C (+0.5 F) | 18th of 74 |
| Europe | 1,022 | n/a | n/a | n/a | n/a |
| North America | 4,263 | +2.0 C (+3.5 F) | +1.0 C (+1.8 F) | +1.5 C (+2.7 F) | 2nd of 76 |
| Oceania | 387 | -0.6 C (-1.0 F) | +0.5 C (+0.9 F) | 0.0 C (-0.1 F) | 32nd of 76 |
| South America | 0 | n/a | n/a | n/a | n/a |
Stations are averaged in 5 degree grid cells and the cells are weighted by the cosine of their latitude. A value and a rank need cells holding at least 50% of the weight of every cell that has ever had data for March; n/a means fewer stations have reported so far. The world includes Antarctica and islands without a continent row.
| Year | Mean against the 1991 to 2020 normal |
|---|---|
| 1951 | -1.7 C (-3.1 F) |
| 1952 | -2.0 C (-3.7 F) |
| 1953 | -0.6 C (-1.1 F) |
| 1954 | -1.8 C (-3.2 F) |
| 1955 | -2.1 C (-3.9 F) |
| 1956 | -1.8 C (-3.2 F) |
| 1957 | -1.9 C (-3.4 F) |
| 1958 | -1.7 C (-3.0 F) |
| 1959 | -0.4 C (-0.7 F) |
| 1960 | -2.0 C (-3.6 F) |
| 1961 | -0.4 C (-0.8 F) |
| 1962 | -1.2 C (-2.1 F) |
| 1963 | -1.1 C (-2.0 F) |
| 1964 | -1.7 C (-3.1 F) |
| 1965 | -1.2 C (-2.2 F) |
| 1966 | -1.3 C (-2.3 F) |
| 1967 | -0.5 C (-0.9 F) |
| 1968 | 0.0 C (-0.1 F) |
| 1969 | -2.2 C (-3.9 F) |
| 1970 | -1.6 C (-3.0 F) |
| 1971 | -1.8 C (-3.3 F) |
| 1972 | -1.1 C (-1.9 F) |
| 1973 | -0.6 C (-1.0 F) |
| 1974 | -0.7 C (-1.2 F) |
| 1975 | -0.6 C (-1.0 F) |
| 1976 | -1.8 C (-3.3 F) |
| 1977 | -0.7 C (-1.3 F) |
| 1978 | -0.5 C (-1.0 F) |
| 1979 | -0.8 C (-1.5 F) |
| 1980 | -1.5 C (-2.6 F) |
| 1981 | -0.5 C (-0.8 F) |
| 1982 | -1.2 C (-2.2 F) |
| 1983 | -0.5 C (-0.9 F) |
| 1984 | -1.0 C (-1.9 F) |
| 1985 | -1.2 C (-2.2 F) |
| 1986 | -0.4 C (-0.8 F) |
| 1987 | -1.4 C (-2.5 F) |
| 1988 | -0.7 C (-1.3 F) |
| 1989 | +0.2 C (+0.3 F) |
| 1990 | +0.9 C (+1.6 F) |
| 1991 | -0.7 C (-1.3 F) |
| 1992 | -0.5 C (-0.9 F) |
| 1993 | -0.4 C (-0.8 F) |
| 1994 | -0.6 C (-1.1 F) |
| 1995 | -0.3 C (-0.5 F) |
| 1996 | -0.8 C (-1.5 F) |
| 1997 | +0.1 C (+0.1 F) |
| 1998 | -0.2 C (-0.4 F) |
| 1999 | -1.2 C (-2.1 F) |
| 2000 | 0.0 C (0.0 F) |
| 2001 | -0.2 C (-0.3 F) |
| 2002 | +0.8 C (+1.4 F) |
| 2003 | -0.3 C (-0.5 F) |
| 2004 | +0.2 C (+0.4 F) |
| 2005 | -0.1 C (-0.3 F) |
| 2006 | -0.3 C (-0.5 F) |
| 2007 | +0.3 C (+0.6 F) |
| 2008 | +0.9 C (+1.6 F) |
| 2009 | -0.1 C (-0.3 F) |
| 2010 | -0.3 C (-0.5 F) |
| 2011 | -0.1 C (-0.2 F) |
| 2012 | -0.3 C (-0.5 F) |
| 2013 | -0.4 C (-0.8 F) |
| 2014 | +0.6 C (+1.1 F) |
| 2015 | +0.6 C (+1.1 F) |
| 2016 | +1.4 C (+2.6 F) |
| 2017 | +1.3 C (+2.3 F) |
| 2018 | 0.0 C (0.0 F) |
| 2019 | +0.9 C (+1.6 F) |
| 2020 | +1.1 C (+2.1 F) |
| 2021 | +0.3 C (+0.6 F) |
| 2022 | +0.5 C (+1.0 F) |
| 2023 | +0.9 C (+1.5 F) |
| 2024 | +0.8 C (+1.5 F) |
| 2025 | +1.2 C (+2.1 F) |
| 2026 | +0.7 C (+1.3 F) |
Furthest Above Normal
| Station | Country | Mean maximum | Maximum vs normal | Mean minimum | Minimum vs normal | Mean vs normal | Years of normal |
|---|---|---|---|---|---|---|---|
| Idaho Falls 16 SE | United States | 14.0 C (57.3 F) | +7.8 C (+14.0 F) | 5.1 C (41.1 F) | +10.2 C (+18.4 F) | +9.0 C (+16.2 F) | 30 |
| Warm Springs California | United States | 24.4 C (76.0 F) | +8.4 C (+15.1 F) | 14.6 C (58.2 F) | +8.5 C (+15.3 F) | +8.4 C (+15.2 F) | 27 |
| Havasu Arizona | United States | 33.8 C (92.9 F) | +6.2 C (+11.2 F) | 14.4 C (57.9 F) | +10.4 C (+18.7 F) | +8.3 C (+15.0 F) | 26 |
| Bondurant | United States | 11.7 C (53.1 F) | +8.0 C (+14.4 F) | -4.6 C (23.7 F) | +8.6 C (+15.4 F) | +8.3 C (+14.9 F) | 27 |
| Mackay Lost Rvr Rs | United States | 16.5 C (61.7 F) | +9.4 C (+16.9 F) | 1.4 C (34.4 F) | +7.2 C (+12.9 F) | +8.3 C (+14.9 F) | 28 |
| Strawberry Valley 2 | United States | 22.2 C (71.9 F) | +10.0 C (+18.1 F) | 6.8 C (44.3 F) | +6.5 C (+11.7 F) | +8.3 C (+14.9 F) | 30 |
| Alder Springs California | United States | 19.8 C (67.6 F) | +8.5 C (+15.2 F) | 10.5 C (50.9 F) | +8.0 C (+14.4 F) | +8.2 C (+14.8 F) | 26 |
| Lassen Lodge California | United States | 21.8 C (71.2 F) | +9.2 C (+16.5 F) | 9.5 C (49.2 F) | +7.2 C (+12.9 F) | +8.2 C (+14.7 F) | 26 |
| Fraser | United States | 12.8 C (55.0 F) | +7.0 C (+12.5 F) | -3.0 C (26.7 F) | +9.3 C (+16.7 F) | +8.1 C (+14.6 F) | 30 |
| Chilao California | United States | 21.8 C (71.2 F) | +8.1 C (+14.7 F) | 12.5 C (54.4 F) | +8.0 C (+14.4 F) | +8.1 C (+14.5 F) | 30 |
Furthest Below Normal
| Station | Country | Mean maximum | Maximum vs normal | Mean minimum | Minimum vs normal | Mean vs normal | Years of normal |
|---|---|---|---|---|---|---|---|
| King Salmon | United States | -10.6 C (13.0 F) | -10.5 C (-18.9 F) | -23.4 C (-10.2 F) | -13.4 C (-24.2 F) | -12.0 C (-21.5 F) | 30 |
| Granite Crk | United States | -12.3 C (9.9 F) | -9.7 C (-17.5 F) | -31.4 C (-24.5 F) | -13.0 C (-23.5 F) | -11.4 C (-20.5 F) | 27 |
| Big Delta AP | United States | -13.6 C (7.6 F) | -9.5 C (-17.2 F) | -28.5 C (-19.2 F) | -12.6 C (-22.7 F) | -11.1 C (-20.0 F) | 30 |
| Nenana Muni AP | United States | -13.5 C (7.7 F) | -8.4 C (-15.1 F) | -32.4 C (-26.3 F) | -13.6 C (-24.4 F) | -11.0 C (-19.8 F) | 29 |
| Fairbanks Intl AP | United States | -13.1 C (8.3 F) | -9.1 C (-16.4 F) | -32.4 C (-26.3 F) | -12.7 C (-22.9 F) | -10.9 C (-19.7 F) | 30 |
| Volochanka | Russia | -27.7 C (-17.9 F) | -11.3 C (-20.4 F) | -37.8 C (-36.0 F) | -10.4 C (-18.8 F) | -10.9 C (-19.6 F) | 28 |
| Iliamna AP | United States | -10.2 C (13.7 F) | -9.1 C (-16.3 F) | -22.0 C (-7.7 F) | -12.6 C (-22.6 F) | -10.8 C (-19.5 F) | 30 |
| Teuchet Creek | United States | -13.0 C (8.5 F) | -11.5 C (-20.6 F) | -29.8 C (-21.6 F) | -10.0 C (-18.0 F) | -10.7 C (-19.3 F) | 29 |
| Novy-Port | Russia | -24.6 C (-12.4 F) | -11.7 C (-21.1 F) | -31.5 C (-24.7 F) | -9.2 C (-16.6 F) | -10.5 C (-18.9 F) | 27 |
| McKinley Park | United States | -13.0 C (8.7 F) | -9.1 C (-16.4 F) | -29.2 C (-20.5 F) | -11.6 C (-20.9 F) | -10.4 C (-18.7 F) | 30 |
The lists use stations with at least 25 years behind their normal. One station does not stand for the area around it.
Countries
| Country | Stations | Mean vs normal |
|---|---|---|
| Sweden | 174 | +4.5 C (+8.1 F) |
| Estonia | 16 | +4.5 C (+8.0 F) |
| Finland | 117 | +4.4 C (+8.0 F) |
| Belarus | 10 | +4.2 C (+7.5 F) |
| Poland | 5 | +4.1 C (+7.3 F) |
| Norway | 72 | +3.4 C (+6.0 F) |
| Czech Republic | 5 | +2.9 C (+5.3 F) |
| Ukraine | 18 | +2.7 C (+4.9 F) |
| Netherlands | 30 | +1.7 C (+3.0 F) |
| Austria | 5 | +1.6 C (+2.9 F) |
| United States | 4,240 | +1.6 C (+2.9 F) |
| Germany | 315 | +1.6 C (+2.9 F) |
| Romania | 21 | +1.5 C (+2.6 F) |
| United Kingdom | 53 | +1.3 C (+2.4 F) |
| France | 40 | +1.1 C (+2.1 F) |
| Mongolia | 28 | +1.0 C (+1.8 F) |
| Kazakhstan | 26 | +1.0 C (+1.7 F) |
| Russia | 22 | +0.9 C (+1.6 F) |
| India | 16 | +0.7 C (+1.3 F) |
| Switzerland | 8 | +0.5 C (+0.9 F) |
| Puerto Rico [United States] | 14 | +0.4 C (+0.8 F) |
| Kyrgyzstan | 5 | +0.4 C (+0.7 F) |
| China | 102 | +0.2 C (+0.4 F) |
| Turkey | 6 | +0.2 C (+0.4 F) |
| Greenland [Denmark] | 6 | +0.1 C (+0.2 F) |
| Australia | 379 | -0.1 C (-0.2 F) |
| Thailand | 12 | -0.2 C (-0.3 F) |
| Spain | 85 | -0.2 C (-0.3 F) |
| Uzbekistan | 8 | -0.3 C (-0.5 F) |
| South Africa | 6 | -0.7 C (-1.3 F) |
| Turkmenistan | 8 | -0.9 C (-1.5 F) |
Rain Against Normal
7,485 stations, March 2026| Band | Stations on the map |
|---|---|
| Under 50% of normal | 556 |
| 50 to 90% of normal | 443 |
| 90 to 110% of normal | 184 |
| 110 to 200% of normal | 365 |
| 200% or more of normal | 222 |
| Under 50% | |
|---|---|
| 50 to 90% | |
| 90 to 110% | |
| 110 to 200% | |
| 200% or more |
Of the 7,485 stations with a full month of rain data in March 2026, 31% had less than half their normal March rain and 12% had at least twice their normal; the median station had 77% of its normal. A station month needs 28 days of rain data, because a total from fewer days is too low, and a normal of at least 10 mm.
Wettest Against Normal
| Station | Country | Rain | Normal | Percent of normal | Years of normal |
|---|---|---|---|---|---|
| Braemar | Australia | 279.6 mm (11.0 in) | 10.3 mm (0.4 in) | 2,703% | 27 |
| Oodla Wirra (McCoys Well) | Australia | 245.0 mm (9.6 in) | 10.2 mm (0.4 in) | 2,409% | 29 |
| Oodla Wirra | Australia | 238.1 mm (9.4 in) | 11.9 mm (0.5 in) | 2,003% | 30 |
| Yunta (Panaramitee) | Australia | 204.0 mm (8.0 in) | 11.3 mm (0.4 in) | 1,804% | 30 |
| Wilpena (Martins Well) | Australia | 198.7 mm (7.8 in) | 11.1 mm (0.4 in) | 1,787% | 30 |
| Hawker | Australia | 186.4 mm (7.3 in) | 11.9 mm (0.5 in) | 1,571% | 30 |
| Woolgangi | Australia | 158.8 mm (6.3 in) | 10.7 mm (0.4 in) | 1,489% | 30 |
| Manna Hill | Australia | 173.4 mm (6.8 in) | 12.2 mm (0.5 in) | 1,420% | 30 |
| Boigbeat | Australia | 168.1 mm (6.6 in) | 13.0 mm (0.5 in) | 1,296% | 29 |
| Mutooroo | Australia | 168.3 mm (6.6 in) | 13.2 mm (0.5 in) | 1,278% | 30 |
Driest Against Normal
| Station | Country | Rain | Normal | Percent of normal | Years of normal |
|---|---|---|---|---|---|
| Strawberry Valley 2 | United States | 0.0 mm (0.00 in) | 297.6 mm (11.7 in) | 0% | 27 |
| Nevada City | United States | 0.0 mm (0.00 in) | 245.2 mm (9.7 in) | 0% | 29 |
| Fiddletown Dexter Rch | United States | 0.0 mm (0.00 in) | 148.6 mm (5.9 in) | 0% | 28 |
| Santa Margarita Boost | United States | 0.0 mm (0.00 in) | 136.2 mm (5.4 in) | 0% | 28 |
| Moultrie 2 ESE | United States | 0.0 mm (0.00 in) | 129.1 mm (5.1 in) | 0% | 26 |
| Mt Wilson Cbs | United States | 0.0 mm (0.00 in) | 122.2 mm (4.8 in) | 0% | 25 |
| Oroville | United States | 0.0 mm (0.00 in) | 117.3 mm (4.6 in) | 0% | 27 |
| Palomar Mtn Obsy | United States | 0.0 mm (0.00 in) | 110.5 mm (4.4 in) | 0% | 27 |
| Henshaw Dam | United States | 0.0 mm (0.00 in) | 101.7 mm (4.0 in) | 0% | 29 |
| Salinas Dam | United States | 0.0 mm (0.00 in) | 101.3 mm (4.0 in) | 0% | 28 |
Weather Records
49,586 set or tied in March 202649,586 weather records were set or tied in March 2026, including 40,367 record highs and 3,560 record lows of maximum and minimum temperature, and 59 all-time records. Every record of the month is in the records ledger for March 2026.
| Record high maximum temperature | |
|---|---|
| Record high minimum temperature | |
| Record daily precipitation | |
| Record low maximum temperature | |
| Record low minimum temperature | |
| Record daily snowfall | |
| Record snow depth |
| Daily | |
|---|---|
| Monthly | |
| All-time |
March Against the Ten Years Before
| Year | Record highs, percent of highs and lows |
|---|---|
| 2016 | 93.5% |
| 2017 | 83.0% |
| 2018 | 53.6% |
| 2019 | 52.9% |
| 2020 | 80.7% |
| 2021 | 74.7% |
| 2022 | 68.9% |
| 2023 | 50.9% |
| 2024 | 85.4% |
| 2025 | 89.7% |
| 2026 | 92.2% |
In March 2026, 92% of the daily temperature records were record highs (12 to 1 highs to lows), against an average of 73% for March in 2016 to 2025.
The Top 10 Records of March 2026
| Date | Station | Country | Record | Value | Significance |
|---|---|---|---|---|---|
| 2026-03-28 | Winning | Australia | All-time precipitation | 328.0 mm (12.9 in) | 100 of 100 (Exceptional) |
| 2026-03-09 | Proston Post Office | Australia | All-time precipitation | 209.4 mm (8.2 in) | 94 of 100 (Exceptional) |
| 2026-03-02 | Tyrrell Downs | Australia | Monthly precipitation | 107.0 mm (4.2 in) | 90 of 100 (Exceptional) |
| 2026-03-03 | Lifton Pumping STN | United States | Monthly precipitation | 33.0 mm (1.3 in) | 89 of 100 (Exceptional) |
| 2026-03-14 | Ulupalakua Rch 250 | United States | All-time precipitation | 289.6 mm (11.4 in) | 87 of 100 (Exceptional) |
| 2026-03-16 | Appleton | United States | All-time snowfall | 46.2 cm (18.2 in) | 84 of 100 (Exceptional) |
| 2026-03-17 | Detour Village | United States | All-time snowfall | 71.1 cm (28.0 in) | 83 of 100 (Exceptional) |
| 2026-03-02 | Nulkwyne Kiamal | Australia | Monthly precipitation | 92.0 mm (3.6 in) | 81 of 100 (Exceptional) |
| 2026-03-14 | Bynum 4 SSE | United States | Monthly precipitation | 25.4 mm (1.0 in) | 81 of 100 (Exceptional) |
| 2026-03-02 | Mutooroo | Australia | Daily precipitation | 75.0 mm (3.0 in) | 80 of 100 (Exceptional) |
Countries With the Most Records
| Country | Records | Highs | Lows |
|---|---|---|---|
| United States | 41,574 | 35,516 | 2,843 |
| Australia | 2,636 | 480 | 418 |
| Sweden | 1,179 | 951 | 0 |
| Finland | 869 | 792 | 0 |
| Germany | 751 | 666 | 26 |
| Norway | 375 | 249 | 0 |
| India | 201 | 156 | 37 |
| Russia | 199 | 165 | 13 |
| China | 192 | 167 | 25 |
| Japan | 167 | 167 | 0 |
| United Kingdom | 152 | 132 | 0 |
| Netherlands | 129 | 123 | 0 |
| Spain | 126 | 33 | 27 |
| Mongolia | 122 | 95 | 25 |
| Estonia | 113 | 113 | 0 |
Events and Storms
5 named storms had a best track position in March 2026; 4 peaked at 64 kt (119 km/h, 74 mph) or more and 2 at 96 kt (178 km/h, 110 mph) or more over their lifetime.
| Storm | Basin | Lifetime peak wind | Category at peak |
|---|---|---|---|
| Indusa | South-West Indian | 85 kt (157 km/h, 98 mph) | Category 2 |
| Narelle | South Pacific | 124 kt (230 km/h, 143 mph) | Category 4 |
| Nuri | Western North Pacific | 29 kt (54 km/h, 33 mph) | Tropical depression |
| Urmil | South Pacific | 64 kt (119 km/h, 74 mph) | Category 1 |
| Horacio | South-West Indian | 133 kt (246 km/h, 153 mph) | Category 4 |
March 2026 in Context
These values come from other sources and the site's own analysis pages. They are context for March 2026; this page does not say that any of them caused the temperatures or records above.
How These Numbers Are Made
Each station's mean daily maximum and minimum temperature for March 2026 is compared with its own mean for March in 1991 to 2020, from months with at least 20 days of both. A station needs 20 such years for a normal. The mean is the average of the two differences. A station month more than 15 C (27 F) from its normal in either element is treated as a data error and left out.
For the world and each continent, stations are averaged within 5 degree grid cells and the cells are averaged weighted by the cosine of their latitude, so dense networks do not outweigh sparse ones. A continent uses the stations of its own countries. A year gets a value and a rank only when its cells hold at least 50% of the weight of all the cells that have ever had data for March, the rule of the climate pages. This is a station based view: places without stations are not covered, and it is not a gridded temperature analysis.
Records are the site's public ledger: one record per observation, set or tied, at its broadest timescale. The ten year comparison uses daily temperature records only, ties excluded. The numbers and sentences on this page are generated by code from the station data; none of them is typed in by hand.
Download the Data
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Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Source: International Best Track Archive for Climate Stewardship (IBTrACS) v04r01, NOAA National Centers for Environmental Information, doi:10.25921/82ty-9e16. Some agency values come from third parties such as JMA, IMD and BoM. (NOAA NCEI terms (citation requested)) Source: NOAA Climate Prediction Center, Oceanic Nino Index (ONI) and Relative Oceanic Nino Index (RONI). Episodes and strength classes are computed by World Extreme Weather Monitor and are not NOAA products. (US Government work, public domain (NWS disclaimer)) Source: Fetterer, F., Knowles, K., Meier, W. N., Savoie, M., Windnagel, A. K. and Stafford, T. (2025). Sea Ice Index, Version 4 (G02135). Boulder, Colorado USA. National Snow and Ice Data Center. doi:10.7265/a98x-0f50. Yearly extremes, ranks, trends and the climatology are computed by World Extreme Weather Monitor from the daily extent files and are not NSIDC products. (NSIDC data use and citation policy (public domain government funded data, citation required)) Source: NOAA Global Monitoring Laboratory, Earth System Research Laboratories (gml.noaa.gov/ccgg/trends). Mauna Loa CO2 data are from NOAA and Scripps (before 1974 the monthly values come from the Scripps Institution of Oceanography). The global means of CO2, methane and nitrous oxide are from the NOAA GML cooperative air sampling network (methane and nitrous oxide: Lan, Thoning and Dlugokencky, doi:10.15138/P8XG-AA10). (US Government open data (NOAA GML, citation requested)) Data as of 2026-11-09. Temperatures against normal, ranks and records are computed by this site from station data and are not official.