What is the hottest month in Fredericksburg?

July is the warmest month in Fredericksburg, with an average high of 80.8°F.

What is the coldest month in Fredericksburg?

January is the coldest month in Fredericksburg, with an average low of 5.5°F.

What month does Fredericksburg get the most rain?

June is typically the wettest month in Fredericksburg, with about 6.59 inches of precipitation.

What plant hardiness zone is Fredericksburg in?

Fredericksburg is approximately in USDA plant hardiness Zone 6a, based on the average annual extreme minimum temperature.

Has the climate in Fredericksburg changed recently?

9.8% of Fredericksburg's all-time daily heat records were set in the last decade (since 2015), compared to roughly 5% if records were evenly distributed over time.

Fredericksburg, IA

Climate overview — based on NOAA 1991-2020 normals from NEW HAMPTON, IA US.

Dfb Warm-summer humid continental climate 6a USDA hardiness Zone 6a

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Fredericksburg has an annual average temperature of 44.7°F with about 40.6 inches of precipitation per year and 38.5 inches of snow. The warmest month is July (average high 80.8°F), and the coldest is January (average low 5.5°F). June is typically the wettest month (6.59 in) and January the driest (1.31 in). Snow typically falls from November through April.

Pleasant months

2 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

56.1°F

warmest to coldest month

Heating need

7,638

HDD/yr

Cooling need

342

CDD/yr

Best time to visit Fredericksburg

Full guide →

Climate change signal

All-time records →

36 of 366 (9.8%) of Fredericksburg's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1890s		10
1900s		11
1910s		25
1920s		24
1930s		93
1940s		25
1950s		8
1960s		12
1970s		12
1980s		39
1990s		24
2000s		30
2010s		26
2020s		27

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month	Avg High	Avg Low	Avg Temp	Precipitation	Snow	Rainy days
January	23.3°F	5.5°F	14.4°F	1.31 in	9.7 in	6
February	27.8°F	9.8°F	18.8°F	1.38 in	10.3 in	6
March	41.0°F	22.4°F	31.7°F	2.35 in	6.2 in	7
April	56.3°F	34.1°F	45.2°F	4.18 in	1.4 in	9
May	68.0°F	46.5°F	57.2°F	4.95 in	—	11
June	78.0°F	56.9°F	67.5°F	6.59 in	—	10
July	80.8°F	60.2°F	70.5°F	4.99 in	—	8
August	78.8°F	58.0°F	68.4°F	4.59 in	—	8
September	72.6°F	49.3°F	61.0°F	3.83 in	—	8
October	59.1°F	36.9°F	48.0°F	2.66 in	0.1 in	7
November	42.8°F	23.8°F	33.3°F	2.07 in	2.9 in	5
December	29.1°F	12.4°F	20.8°F	1.67 in	7.9 in	6