Climate Insights for Blue Grass

Sherman County, Iowa, United States

Hottest
Luglio
29°C peak
Coldest
Gennaio
-8°C low
Wettest
Maggio
123mm rain
Best to Visit
Luglio, Agosto, Settembre
Mild temps & low rain

Climate Overview

The climate in Blue Grass is temperate. The average annual temperature is 11°C and approximately 984mm of precipitation falls per year. Blue Grass receives a notable amount of rainfall throughout the year, including during its driest month. Blue Grass is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Luglio, Giugno, Agosto. The coldest months are Gennaio, Febbraio, Dicembre, when temperatures can drop to -8°C. Snowfall occurs from January to December, with around 61cm accumulating over the season.

Temperature

-10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 0° Average: -4° Min: -8° Feb Max: 3° Average: -3° Min: -7° Mar Max: 10° Average: 5° Min: 0° Apr Max: 17° Average: 11° Min: 5° May Max: 23° Average: 18° Min: 13° Jun Max: 29° Average: 23° Min: 18° Jul Max: 29° Average: 25° Min: 20° Aug Max: 29° Average: 23° Min: 18° Sep Max: 26° Average: 20° Min: 15° Oct Max: 19° Average: 13° Min: 8° Nov Max: 10° Average: 5° Min: 1° Dec Max: 4° Average: 0° Min: -3°
Max
Average
Min

Blue Grass has a wide annual temperature range, spanning 37°C from the coldest to warmest months. The warmest month is Luglio, when average highs reach 29°C and the mean temperature sits around 25°C. The coldest month is Gennaio, when overnight lows fall to -8°C and the daily average is -4°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 8°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm 125mm 150mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 51mm Snow: 20mm Feb Precipitation: 49mm Snow: 15mm Mar Precipitation: 80mm Snow: 9mm Apr Precipitation: 102mm Snow: 3mm May Precipitation: 123mm Snow: 0mm Jun Precipitation: 117mm Snow: 0mm Jul Precipitation: 80mm Snow: 0mm Aug Precipitation: 78mm Snow: 0mm Sep Precipitation: 89mm Snow: 0mm Oct Precipitation: 93mm Snow: 1mm Nov Precipitation: 63mm Snow: 5mm Dec Precipitation: 59mm Snow: 9mm
Precipitation
Snow

Blue Grass is a moderately rainy area, receiving approximately 984mm of precipitation annually, which averages out to around 82mm per month. The wettest month is May, averaging 123mm of rainfall. June and April also tend to see above-average precipitation. The driest month is February, with just 49mm. That's 74mm less than May, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 61cm accumulating over the season. January typically sees the most snow at around 20cm.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h 25km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 20km/h Feb Wind Speed: 22km/h Mar Wind Speed: 22km/h Apr Wind Speed: 24km/h May Wind Speed: 20km/h Jun Wind Speed: 19km/h Jul Wind Speed: 16km/h Aug Wind Speed: 16km/h Sep Wind Speed: 18km/h Oct Wind Speed: 21km/h Nov Wind Speed: 21km/h Dec Wind Speed: 21km/h
Wind Speed

Blue Grass is moderately windy, with an average annual wind speed of 20km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 24km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 16km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 21km/h in winter, 22km/h in spring, 17km/h in summer, 20km/h in autumn.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

1 day until Spring

It is currently winter in Blue Grass, which began on December 21, 2026. Blue Grass is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in Luglio at around 29°C, while the coldest stretch bottoms out in Gennaio near -8°C. Spring is next, beginning on March 20, 2026 — 1 days from now.

Spring

Temperatures range from 0 to 23°C. Rainfall is heavy, totalling around 305mm across the season with a monthly average of 102mm. Winds are moderate at around 22km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 18 to 29°C. Precipitation is moderate at around 275mm for the season, averaging 92mm per month. Winds are moderate at around 17km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 1 to 26°C. Precipitation is moderate at around 245mm for the season, averaging 82mm per month. Expect around 6cm of snow accumulation during this period. Winds are moderate at around 20km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from -8 to 4°C. Precipitation is moderate at around 159mm for the season, averaging 53mm per month. Expect around 43cm of snow accumulation during this period. Winds are moderate at around 21km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Best Time to Visit

Jan -4°
Feb -3°
Mar
Apr 11°
May 18°
Jun 23°
Jul 25°
Aug 23°
Sep 20°
Oct 13°
Nov
Dec

The best time to visit Blue Grass is during Luglio, Agosto and Settembre, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 82mm per month. By contrast, Gennaio can be quite cold with temperatures dropping to -8°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Blue Grass based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-8 °C
0 °C
20 km/h
51 mm
20 cm
Feb
-7 °C
3 °C
22 km/h
49 mm
15 cm
Mar Current
0 °C
10 °C
22 km/h
80 mm
9 cm
Apr
5 °C
17 °C
24 km/h
102 mm
3 cm
May
13 °C
23 °C
20 km/h
123 mm
0 cm
Jun
18 °C
29 °C
19 km/h
117 mm
0 cm
Jul
20 °C
29 °C
16 km/h
80 mm
0 cm
Aug
18 °C
29 °C
16 km/h
78 mm
0 cm
Sep
15 °C
26 °C
18 km/h
89 mm
0 cm
Oct
8 °C
19 °C
21 km/h
93 mm
1 cm
Nov
1 °C
10 °C
21 km/h
63 mm
5 cm
Dec
-3 °C
4 °C
21 km/h
59 mm
9 cm
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Metric (°C, km/h)