Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Ascension features a cold semi-arid climate (BSk).Temperatures typically range between 8 °C (48 °F) and 29 °C (84 °F) through the year, but rarely can drop to -7 °C (20 °F) or can rise to as high as 41 °C (106 °F).The average annual precipitation amounts to about 258 mm (10.1 inches) and receives 42 rainy days on the 1 mm (0.04 inches) threshold annually.Ascension enjoys an average of 3644 hours of sunshine throughout the year, and daylight varies from 10 hours 9 minutes to 14 hours 7 minutes per day.
The warmest months in Ascension are June, July and August, with daily mean temperatures ranging from 27 to 29 °C (80 - 84 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 8 to 11 °C (48 - 52 °F) throughout the day. On average each year, Ascension experiences 187 days above 25 °C (77.0 °F) and 22 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 26°C (80°F) | 29°C (84°F) | 32°C (90°F) | 35°C (95°F) | 37°C (100°F) | 41°C (105°F) | 41°C (106°F) | 39°C (103°F) | 36°C (97°F) | 34°C (93°F) | 29°C (85°F) | 24°C (75°F) |
Mean maximum | 23°C (74°F) | 25°C (76°F) | 30°C (86°F) | 33°C (92°F) | 36°C (97°F) | 39°C (102°F) | 39°C (102°F) | 37°C (99°F) | 36°C (96°F) | 32°C (91°F) | 28°C (82°F) | 22°C (73°F) |
Average high | 16°C (61°F) | 19°C (66°F) | 23°C (73°F) | 27°C (82°F) | 31°C (89°F) | 36°C (96°F) | 34°C (93°F) | 33°C (92°F) | 31°C (88°F) | 27°C (80°F) | 22°C (71°F) | 16°C (60°F) |
Daily mean | 8°C (48°F) | 11°C (52°F) | 15°C (60°F) | 20°C (69°F) | 24°C (76°F) | 29°C (84°F) | 27°C (81°F) | 27°C (80°F) | 24°C (76°F) | 20°C (68°F) | 14°C (58°F) | 9°C (48°F) |
Average low | 2°C (36°F) | 4°C (40°F) | 8°C (46°F) | 12°C (54°F) | 15°C (60°F) | 20°C (69°F) | 21°C (70°F) | 21°C (69°F) | 18°C (64°F) | 13°C (55°F) | 7°C (45°F) | 3°C (38°F) |
Mean minimum | -5°C (24°F) | -3°C (27°F) | 1°C (34°F) | 5°C (42°F) | 10°C (50°F) | 14°C (58°F) | 18°C (65°F) | 18°C (65°F) | 13°C (57°F) | 3°C (38°F) | 1°C (34°F) | -3°C (26°F) |
Minimum | -5°C (23°F) | -7°C (20°F) | -1°C (30°F) | 3°C (38°F) | 6°C (43°F) | 12°C (54°F) | 18°C (64°F) | 17°C (63°F) | 12°C (54°F) | -2°C (29°F) | -2°C (28°F) | -4°C (24°F) |
Compare temperature, precipitation, sunshine, UV index in Ascension, Chihuahua, Mexico with other places around the world.
Ascension usually has the most precipitation in July, August and September, with an average of 8 rainy days and 47 mm (1.9 inches) of precipitation per month.The driest months in Ascension are April, May and June. On average, 7 mm (0.3 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 15 (0.6) | 13 (0.5) | 12 (0.5) | 4 (0.1) | 6 (0.2) | 12 (0.5) | 72 (2.8) | 39 (1.5) | 32 (1.3) | 17 (0.7) | 13 (0.5) | 23 (0.9) |
Average precipitation days (≥ 1 mm) | 2 | 2 | 2 | 1 | 0 | 3 | 10 | 9 | 6 | 2 | 2 | 3 |
The sunniest months in Ascension are May, June and July, when the sun shines an average of 11 hours 50 minutes a day.Least sunny months in Ascension: January, February and December receive an average of 7 hours 53 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 211 | 254 | 298 | 334 | 368 | 362 | 357 | 338 | 308 | 292 | 266 | 252 |
Mean daily daylight hours | 10h 22m | 11h 5m | 12h 0m | 12h 57m | 13h 44m | 14h 7m | 13h 54m | 13h 12m | 12h 18m | 11h 22m | 10h 33m | 10h 9m |
Ascension experiences the highest level of ultraviolet (UV) radiation in April, May and June, when the maximum UV index can reach values of 12 - 13, which corresponds to the Extreme category of sun exposure.January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 7. For more detailed information, check out our hourly Ascension UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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UV Index (month maximum) | 5 | 8 | 10 | 12 | 13 | 13 | 12 | 12 | 11 | 9 | 7 | 5 |