April 2025 is April of the second April of the Earth, and it can be traced back to 1850 in the analysis of global weather data. Global temperatures so far in 2024 and 2025 are significantly higher than in any year before 2015.
According to NOAA, April in the global land region was recorded in 2025 and the global ocean is the second warm water. The warmest April in Asia was recorded; North America and Europe ranked fifth – Africa, whose seventh greenhouse, Oceana was ranked 13th, while South America ranked 18th. In April 2025, snow cover in the northern hemisphere tied with 2024 at the lowest value recorded since 1967.
The 13th Temperature in April, with nine states, mainly the Southeast, recording the top ten warmest April. Six states were among the top ten most wettest April on record – Kentucky, Alaska, Oklahoma, Missouri, Arkansas and Indiana. The U.S. tornado scored 350 in April, with 37 of them being EF2 or stronger. From January 1 to May 6, the preliminary total of tornadoes was 724 tornadoes, the second highest annual total since 2010, second only to 2011 (1,284). About two-thirds of the 35 U.S. tornado deaths so far in 2025 (23) involved manufacturing/mobile homes, part of the unsettling long-term trend; 33 of the 54 people killed by U.S. tornadoes in 2024 were in manufacturing homes.
Global surface temperatures from January to April ranked second in NOAA's 176-year record. Noaa said that according to NOAA/NCEI statistical analysis, there is a 3% chance in 2025 that is the warmest year on record, while a 39% chance will be the second warming level, second only to 2024. In 2025, there is a high probability that 2025 (>99% chance) the top five years.
Neutral conditions
NOAA reported weaker LaNiña conditions in the Eastern Pacific, which now begins in December, in May's monthly discussion of Elniño (Elniño/Southern) oscillation states or ENSO's May monthly discussions, now with neutral conditions. ENSO is a recurring ocean and atmospheric pattern that warms and cools the eastern tropical Pacific region through the El Niño and events of La Niña for one to three years.
According to NOAA's definition, the conditions for LaNiña do not last for five overlapping three months, which is not enough to become a formal LaNiña plot. The Australian Meteorological Agency used a tighter threshold than NOAA to define the LaNiña conditions and found that from December 2024 to February 2025, only a few weeks made the eastern Pacific sea surface temperature sufficient to meet its threshold.
According to NOAA's May forecast, ENSO neutral conditions as of August 2025 are likely (74% chance) and may continue until October (more than 50% chance). For the upcoming Atlantic hurricane season (August to September to October), the forecast from the Columbia University Institute of International Climate and Social Sciences on April 21 requires a 31% chance of LaNiña, a 52% chance of Enso neutral and a 17% chance of ElNiñuno. Elniño conditions tend to suppress Atlantic hurricane activity by increasing wind shears, but LaNiña conditions tend to have the opposite effect. For the end of ENSO's low-skill “Spring Predictability Damage” (see Climate.gov's 2015 Interpreter), the ENSO forecast released this month is a bit less confident than usual.
While El Niño events often last only one year (usually from northern fall to northern spring, as in 2023-24), La Niña events often restoring or recur across two or even three years in a row, as was the case from mid-2020 to early 2023. Over the last two decades (2005-2024), the peak three months of hurricane season have included five El Niño periods, seven La Niña periods, and eight neutral period.
Arctic Sea Ice: Ninth Lowest April Range Recorded
Arctic sea ice range began in April on recorded territory, which had recovered later this month. As a result, April 2025 ended up being ninth in the 47-year satellite record, according to data from the National Snow and Ice Data Center (NSIDC). The Arctic finished sixth in April in 2025.
The Antarctic sea ice range in April was the 10th highest in 47-year satellite record. Antarctic temperatures are above average in April.
On May 6, NSIDC announced that they will cut the amount of data they will provide in the future (see Skeet below), which may force us to turn to alternative sea ice data sources for future monthly updates. Both Japanese and Europeans release sea ice products every month.
Global Heat and Cold Tags for April 2025
Weather record expert Maximiliano Herrera records details of the world's temperature extremes and provides us with the following April information. Follow him on Bluesky: @Extremetemps.bsky.social
- The hottest temperature in the northern hemisphere: 49°C (120.2°F) on April 17, Pakistan
- Coldest temperature in the Northern Hemisphere: -44.2°C (-47.6°F) at the top of the Greenland Mountains on April 1
- The hottest temperature in the southern hemisphere: 44.6°C (112.3°F) in Ipersdrif, South Africa on April 3
- Coldest temperature in the southern hemisphere: -78.6°C (-109.5°F) in Concordia, Antarctica, April 13
Main weather stations in April: History, History Zero
In a global station with a history of at least 40 years, a group, not only is it a shackle, in the April history, no stations have created history:
Puerto Princecar (Philippines) Max April 23, 37°C
As of the end of April
- Maldives: 35.8°C (96.4°F) at Hanimadhoo on February 27 (Previous records: 35.1°C (95.2°F), Hanimadhoo, March 24, 2024
- Togo: March 16 and April 5 (tie), 44.0°C (111.2°F) of mango.
As of the end of April
In addition to the two historical records set so far in 2025 (plus a country that binds its records in two separate months), as of the end of April 2025, there were 26 countries or regions with a total of 29 monthly calorie records:
- January (6): Cocoa Islands. Southern France, Faroe Islands, Maldives, North Mariana, Martinique
- February (3): North Mariana, Argentina, Togo
- March (6): Southern French Territory, Algeria, Saba, South Korea, Kyrgyzstan, Georgia
- April (11): Southern France, British Indian Ocean Territory, Latvia, Estonia, Kuwait, Saudi Arabia, Iraq, Iran, Turkmenistan, Kyrgyzstan, Ireland
A country set a record in 2025 in January.
Hemisphere and continental temperature record in 2025
- Highest temperature recorded in South America in February: 46.5°C (115.7°F) in Rivadavia, Argentina, February 4
- The highest lowest temperature recorded in South America on February 10 was recorded in South America: Catamaca in Argentina at 30.8°C (87.4°F) on February 10.
Bob Henson contributed to this post.
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