Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Shenandoah features a humid continental climate (Dfa).Temperatures typically range between -4 °C (26 °F) and 26 °C (78 °F) through the year, but rarely can drop to -31 °C (-24 °F) or can rise to as high as 40 °C (104 °F).The average annual precipitation amounts to about 1048 mm (41.3 inches) and receives 103 rainy days on the 1 mm (0.04 inches) threshold annually.Shenandoah enjoys an average of 3060 hours of sunshine throughout the year, and daylight varies from 9 hours 16 minutes to 15 hours 2 minutes per day.
The warmest months in Shenandoah are June, July and August, with daily mean temperatures ranging from 24 to 26 °C (75 - 78 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to 0 °C (26 - 33 °F) throughout the day. On average each year, Shenandoah experiences 106 days above 25 °C (77.0 °F) and 113 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 15°C (59°F) | 23°C (73°F) | 26°C (79°F) | 31°C (89°F) | 37°C (99°F) | 40°C (104°F) | 36°C (97°F) | 35°C (95°F) | 35°C (95°F) | 32°C (90°F) | 26°C (80°F) | 22°C (72°F) |
Mean maximum | 13°C (56°F) | 17°C (63°F) | 23°C (74°F) | 29°C (84°F) | 32°C (91°F) | 35°C (95°F) | 35°C (96°F) | 34°C (93°F) | 33°C (93°F) | 30°C (87°F) | 21°C (70°F) | 17°C (63°F) |
Average high | 1°C (35°F) | 3°C (37°F) | 11°C (53°F) | 17°C (62°F) | 23°C (74°F) | 30°C (86°F) | 30°C (87°F) | 29°C (84°F) | 27°C (80°F) | 18°C (64°F) | 10°C (51°F) | 6°C (43°F) |
Daily mean | -4°C (26°F) | -3°C (27°F) | 6°C (43°F) | 11°C (51°F) | 18°C (64°F) | 24°C (76°F) | 26°C (78°F) | 24°C (75°F) | 21°C (70°F) | 12°C (54°F) | 5°C (41°F) | 0°C (33°F) |
Average low | -8°C (18°F) | -8°C (18°F) | 1°C (33°F) | 5°C (41°F) | 13°C (55°F) | 19°C (66°F) | 21°C (69°F) | 19°C (66°F) | 15°C (60°F) | 7°C (45°F) | -1°C (31°F) | -5°C (24°F) |
Mean minimum | -24°C (-10°F) | -21°C (-5°F) | -10°C (14°F) | -6°C (22°F) | 4°C (40°F) | 12°C (55°F) | 15°C (59°F) | 12°C (54°F) | 7°C (46°F) | -3°C (27°F) | -11°C (13°F) | -15°C (6°F) |
Minimum | -30°C (-22°F) | -31°C (-24°F) | -21°C (-6°F) | -10°C (15°F) | 2°C (36°F) | 9°C (49°F) | 14°C (57°F) | 10°C (51°F) | 5°C (42°F) | -6°C (22°F) | -15°C (5°F) | -23°C (-9°F) |
Compare temperature, precipitation, sunshine, UV index in Shenandoah, Iowa, United States with other places around the world.
Shenandoah usually has the most precipitation in May, June and October, with an average of 11 rainy days and 148 mm (5.8 inches) of precipitation per month.The driest months in Shenandoah are February, November and December. On average, 34 mm (1.3 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 36 (1.4) | 32 (1.3) | 93 (3.6) | 72 (2.8) | 162 (6.4) | 130 (5.1) | 93 (3.7) | 106 (4.2) | 104 (4.1) | 152 (6.0) | 34 (1.4) | 35 (1.4) |
Average precipitation days (≥ 1 mm) | 6 | 6 | 10 | 10 | 15 | 10 | 8 | 10 | 10 | 10 | 5 | 3 |
The sunniest months in Shenandoah are June, July and August, when the sun shines an average of 11 hours 19 minutes a day.Least sunny months in Shenandoah: January, February and November receive an average of 6 hours 12 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 149 | 201 | 209 | 259 | 261 | 346 | 369 | 325 | 279 | 230 | 207 | 219 |
Mean daily daylight hours | 9h 36m | 10h 39m | 11h 58m | 13h 19m | 14h 28m | 15h 2m | 14h 43m | 13h 42m | 12h 24m | 11h 3m | 9h 52m | 9h 16m |
Shenandoah experiences the highest level of ultraviolet (UV) radiation in May, 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 4. For more detailed information, check out our hourly Shenandoah UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 3 | 5 | 6 | 9 | 10 | 11 | 10 | 9 | 8 | 6 | 4 | 3 |