Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Walnut Grove features a humid subtropical climate (Cfa).Temperatures typically range between 2 °C (35 °F) and 27 °C (80 °F) through the year, but rarely can drop to -25 °C (-12 °F) or can rise to as high as 37 °C (99 °F).The average annual precipitation amounts to about 1178 mm (46.4 inches) and receives 117 rainy days on the 1 mm (0.04 inches) threshold annually.Walnut Grove enjoys an average of 3007 hours of sunshine throughout the year, and daylight varies from 9 hours 35 minutes to 14 hours 42 minutes per day.
The warmest months in Walnut Grove are June, July and August, with daily mean temperatures ranging from 25 to 27 °C (77 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 5 °C (35 - 42 °F) throughout the day. On average each year, Walnut Grove experiences 122 days above 25 °C (77.0 °F) and 67 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 21°C (70°F) | 27°C (81°F) | 29°C (85°F) | 31°C (89°F) | 34°C (93°F) | 37°C (99°F) | 37°C (99°F) | 36°C (98°F) | 35°C (95°F) | 32°C (89°F) | 26°C (79°F) | 24°C (76°F) |
Mean maximum | 18°C (64°F) | 23°C (73°F) | 26°C (78°F) | 29°C (85°F) | 31°C (88°F) | 34°C (93°F) | 36°C (98°F) | 35°C (95°F) | 34°C (93°F) | 31°C (89°F) | 23°C (74°F) | 21°C (70°F) |
Average high | 7°C (44°F) | 9°C (48°F) | 15°C (60°F) | 19°C (66°F) | 24°C (76°F) | 30°C (86°F) | 32°C (89°F) | 30°C (86°F) | 29°C (84°F) | 21°C (70°F) | 14°C (57°F) | 10°C (51°F) |
Daily mean | 2°C (35°F) | 3°C (38°F) | 9°C (49°F) | 13°C (56°F) | 19°C (67°F) | 25°C (77°F) | 27°C (80°F) | 25°C (77°F) | 23°C (73°F) | 15°C (59°F) | 8°C (47°F) | 5°C (42°F) |
Average low | -3°C (28°F) | -2°C (29°F) | 5°C (40°F) | 8°C (46°F) | 15°C (58°F) | 20°C (68°F) | 22°C (72°F) | 20°C (69°F) | 18°C (64°F) | 10°C (50°F) | 3°C (38°F) | 1°C (33°F) |
Mean minimum | -13°C (9°F) | -14°C (7°F) | -7°C (20°F) | -1°C (30°F) | 7°C (44°F) | 15°C (59°F) | 18°C (64°F) | 16°C (61°F) | 9°C (49°F) | 1°C (34°F) | -6°C (21°F) | -8°C (17°F) |
Minimum | -19°C (-2°F) | -25°C (-12°F) | -15°C (5°F) | -5°C (24°F) | 4°C (39°F) | 12°C (54°F) | 16°C (62°F) | 14°C (58°F) | 8°C (46°F) | -3°C (28°F) | -12°C (10°F) | -13°C (9°F) |
Compare temperature, precipitation, sunshine, UV index in Walnut Grove, Missouri, United States with other places around the world.
Walnut Grove usually has the most precipitation in March, April and May, with an average of 12 rainy days and 148 mm (5.8 inches) of precipitation per month.The driest months in Walnut Grove are September, November and December. On average, 55 mm (2.2 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 75 (3.0) | 70 (2.8) | 133 (5.3) | 137 (5.4) | 175 (6.9) | 79 (3.1) | 95 (3.7) | 121 (4.8) | 58 (2.3) | 126 (5.0) | 62 (2.5) | 45 (1.8) |
Average precipitation days (≥ 1 mm) | 7 | 10 | 12 | 12 | 14 | 9 | 10 | 12 | 6 | 11 | 8 | 6 |
The sunniest months in Walnut Grove are June, July and August, when the sun shines an average of 10 hours 50 minutes a day.Least sunny months in Walnut Grove: January, February and December receive an average of 5 hours 48 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 142 | 177 | 212 | 245 | 279 | 335 | 347 | 314 | 286 | 239 | 219 | 207 |
Mean daily daylight hours | 9h 53m | 10h 48m | 11h 59m | 13h 11m | 14h 12m | 14h 42m | 14h 25m | 13h 31m | 12h 22m | 11h 10m | 10h 7m | 9h 35m |
Walnut Grove experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / 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 Walnut Grove UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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UV Index (month maximum) | 3 | 6 | 7 | 10 | 10 | 11 | 11 | 10 | 9 | 7 | 5 | 3 |