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Monthly climate in Nashua, Iowa, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Nashua features a humid continental climate (Dfa).Temperatures typically range between -7 °C (19 °F) and 23 °C (74 °F) through the year, but rarely can drop to -35 °C (-30 °F) or can rise to as high as 35 °C (96 °F).The average annual precipitation amounts to about 1065 mm (41.9 inches) and receives 111 rainy days on the 1 mm (0.04 inches) threshold annually.Nashua enjoys an average of 2925 hours of sunshine throughout the year, and daylight varies from 9 hours 3 minutes to 15 hours 17 minutes per day.

Monthly average temperatures in Nashua, Iowa, United States §

The warmest months in Nashua are June, July and August, with daily mean temperatures ranging from 21 to 23 °C (71 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -2 °C (19 - 28 °F) throughout the day. On average each year, Nashua experiences 77 days above 25 °C (77.0 °F) and 137 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Nashua, Iowa, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 12°C
(53°F)		 19°C
(66°F)		 22°C
(71°F)		 27°C
(82°F)		 34°C
(93°F)		 35°C
(95°F)		 33°C
(92°F)		 35°C
(96°F)		 33°C
(92°F)		 30°C
(87°F)		 24°C
(75°F)		 21°C
(70°F)
Mean maximum 8°C
(47°F)		 11°C
(51°F)		 18°C
(65°F)		 25°C
(77°F)		 31°C
(89°F)		 33°C
(91°F)		 33°C
(91°F)		 31°C
(89°F)		 31°C
(89°F)		 29°C
(84°F)		 17°C
(63°F)		 14°C
(58°F)
Average high -3°C
(26°F)		 -3°C
(27°F)		 7°C
(44°F)		 13°C
(56°F)		 21°C
(70°F)		 27°C
(81°F)		 28°C
(83°F)		 27°C
(80°F)		 24°C
(75°F)		 15°C
(59°F)		 6°C
(44°F)		 2°C
(36°F)
Daily mean -7°C
(19°F)		 -7°C
(19°F)		 2°C
(36°F)		 8°C
(46°F)		 16°C
(60°F)		 22°C
(72°F)		 23°C
(74°F)		 21°C
(71°F)		 18°C
(65°F)		 10°C
(50°F)		 2°C
(35°F)		 -2°C
(28°F)
Average low -11°C
(12°F)		 -12°C
(11°F)		 -3°C
(27°F)		 2°C
(36°F)		 10°C
(51°F)		 17°C
(62°F)		 18°C
(65°F)		 16°C
(61°F)		 13°C
(55°F)		 5°C
(42°F)		 -3°C
(27°F)		 -6°C
(21°F)
Mean minimum -25°C
(-13°F)		 -25°C
(-13°F)		 -16°C
(4°F)		 -7°C
(19°F)		 2°C
(36°F)		 10°C
(51°F)		 13°C
(56°F)		 10°C
(51°F)		 5°C
(42°F)		 -5°C
(24°F)		 -12°C
(10°F)		 -17°C
(1°F)
Minimum -34°C
(-29°F)		 -35°C
(-30°F)		 -24°C
(-11°F)		 -12°C
(10°F)		 -1°C
(30°F)		 8°C
(46°F)		 11°C
(52°F)		 10°C
(50°F)		 2°C
(36°F)		 -8°C
(19°F)		 -17°C
(2°F)		 -22°C
(-7°F)

Compare climate in Nashua with other places

Compare temperature, precipitation, sunshine, UV index in Nashua, Iowa, United States with other places around the world.

Monthly average precipitation in Nashua, Iowa, United States §

Nashua usually has the most precipitation in May, June and October, with an average of 12 rainy days and 141 mm (5.5 inches) of precipitation per month.The driest months in Nashua are January, February and December. On average, 41 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Nashua, Iowa, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 38 (1.5) 50 (2.0) 72 (2.8) 72 (2.8) 163 (6.4) 128 (5.0) 92 (3.6) 119 (4.7) 114 (4.5) 130 (5.1) 50 (2.0) 37 (1.4)
Average precipitation days (≥ 1 mm) 6 8 8 10 15 12 9 9 11 11 7 5

Monthly sunshine hours in Nashua, Iowa, United States §

The sunniest months in Nashua are June, July and August, when the sun shines an average of 11 hours 9 minutes a day.Least sunny months in Nashua: January, February and December receive an average of 5 hours 38 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Nashua, Iowa, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 132 196 227 235 257 335 364 325 260 206 197 184
Mean daily daylight hours 9h 24m 10h 32m 11h 58m 13h 25m 14h 40m 15h 17m 14h 56m 13h 50m 12h 26m 10h 58m 9h 42m 9h 3m

Solar UV radiation in Nashua, Iowa, United States §

Nashua experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 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 3. For more detailed information, check out our hourly Nashua UV Index data.

Average daily maximum UV levels by month for Nashua, Iowa, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 3 5 5 8 9 11 10 9 8 5 3 3