Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Delta features a cold semi-arid climate (BSk).Temperatures typically range between 0 °C (32 °F) and 29 °C (85 °F) through the year, but rarely can drop to -24 °C (-12 °F) or can rise to as high as 41 °C (106 °F).The average annual precipitation amounts to about 237 mm (9.3 inches) and receives 45 rainy days on the 1 mm (0.04 inches) threshold annually.Delta enjoys an average of 3478 hours of sunshine throughout the year, and daylight varies from 9 hours 25 minutes to 14 hours 53 minutes per day.
The warmest months in Delta are June, July and August, with daily mean temperatures ranging from 25 to 29 °C (77 - 85 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 3 °C (32 - 37 °F) throughout the day. On average each year, Delta experiences 118 days above 25 °C (77.0 °F) and 103 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 17°C (63°F) | 22°C (73°F) | 28°C (83°F) | 30°C (87°F) | 36°C (98°F) | 40°C (105°F) | 41°C (106°F) | 40°C (105°F) | 38°C (101°F) | 29°C (85°F) | 25°C (77°F) | 18°C (65°F) |
Mean maximum | 13°C (56°F) | 18°C (65°F) | 23°C (75°F) | 29°C (85°F) | 33°C (91°F) | 35°C (95°F) | 39°C (103°F) | 39°C (102°F) | 37°C (98°F) | 28°C (82°F) | 21°C (71°F) | 14°C (57°F) |
Average high | 6°C (44°F) | 9°C (49°F) | 15°C (59°F) | 20°C (67°F) | 24°C (76°F) | 32°C (90°F) | 36°C (97°F) | 35°C (95°F) | 29°C (85°F) | 19°C (66°F) | 13°C (56°F) | 6°C (43°F) |
Daily mean | 0°C (32°F) | 3°C (37°F) | 8°C (46°F) | 12°C (54°F) | 17°C (63°F) | 25°C (77°F) | 29°C (85°F) | 28°C (82°F) | 22°C (72°F) | 11°C (53°F) | 6°C (44°F) | 0°C (32°F) |
Average low | -5°C (23°F) | -3°C (26°F) | 1°C (35°F) | 5°C (41°F) | 9°C (49°F) | 16°C (61°F) | 21°C (70°F) | 20°C (68°F) | 14°C (58°F) | 4°C (40°F) | -0°C (32°F) | -5°C (23°F) |
Mean minimum | -17°C (2°F) | -15°C (6°F) | -9°C (16°F) | -4°C (25°F) | 2°C (36°F) | 8°C (46°F) | 14°C (58°F) | 14°C (57°F) | 4°C (40°F) | -6°C (21°F) | -9°C (17°F) | -14°C (8°F) |
Minimum | -24°C (-12°F) | -21°C (-6°F) | -15°C (6°F) | -6°C (22°F) | -1°C (30°F) | 4°C (39°F) | 11°C (51°F) | 10°C (50°F) | 0°C (33°F) | -11°C (13°F) | -11°C (13°F) | -16°C (3°F) |
Compare temperature, precipitation, sunshine, UV index in Delta, Utah, United States with other places around the world.
Delta usually has the most precipitation in February, March and December, with an average of 6 rainy days and 31 mm (1.2 inches) of precipitation per month.The driest months in Delta are June, July and August. On average, 5 mm (0.2 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 24 (0.9) | 28 (1.1) | 40 (1.6) | 24 (0.9) | 24 (1.0) | 4 (0.2) | 6 (0.2) | 7 (0.3) | 9 (0.4) | 26 (1.0) | 19 (0.8) | 26 (1.0) |
Average precipitation days (≥ 1 mm) | 5 | 5 | 8 | 6 | 5 | 0 | 1 | 1 | 2 | 4 | 3 | 5 |
The sunniest months in Delta are May, June and July, when the sun shines an average of 12 hours 12 minutes a day.Least sunny months in Delta: January, February and December receive an average of 6 hours 30 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 164 | 211 | 266 | 304 | 363 | 381 | 379 | 359 | 312 | 279 | 240 | 214 |
Mean daily daylight hours | 9h 44m | 10h 43m | 11h 58m | 13h 16m | 14h 20m | 14h 53m | 14h 35m | 13h 37m | 12h 23m | 11h 6m | 9h 59m | 9h 25m |
Delta experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure.January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Delta UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 4 | 6 | 8 | 10 | 11 | 12 | 12 | 11 | 10 | 7 | 5 | 3 |