Climate Insights for Romulus

Sherman County, Michigan, United States

Hottest
July
29°C peak
Coldest
January
-6°C low
Wettest
July
103mm rain
Best to Visit
May, June, August
Mild temps & low rain

Climate Overview

The climate in Romulus is temperate. The average annual temperature is 11°C and approximately 924mm of precipitation falls per year. Romulus receives a notable amount of rainfall throughout the year, including during its driest month. Romulus is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to -6°C. Snowfall occurs from January to December, with around 98cm accumulating over the season.

Temperature

-10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 1° Average: -3° Min: -6° Feb Max: 4° Average: -1° Min: -5° Mar Max: 9° Average: 4° Min: 0° Apr Max: 15° Average: 9° Min: 4° May Max: 21° Average: 16° Min: 11° Jun Max: 27° Average: 21° Min: 16° Jul Max: 29° Average: 24° Min: 19° Aug Max: 28° Average: 22° Min: 17° Sep Max: 24° Average: 19° Min: 14° Oct Max: 18° Average: 12° Min: 8° Nov Max: 9° Average: 5° Min: 2° Dec Max: 4° Average: 0° Min: -3°
Max
Average
Min

Temperatures in Romulus vary considerably across the year, with a 35°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 29°C and the mean temperature sits around 24°C. The coldest month is January, when overnight lows fall to -6°C and the daily average is -3°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 7°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: 66mm Snow: 24mm Feb Precipitation: 61mm Snow: 28mm Mar Precipitation: 80mm Snow: 14mm Apr Precipitation: 91mm Snow: 6mm May Precipitation: 94mm Snow: 0mm Jun Precipitation: 86mm Snow: 0mm Jul Precipitation: 103mm Snow: 0mm Aug Precipitation: 78mm Snow: 0mm Sep Precipitation: 62mm Snow: 0mm Oct Precipitation: 83mm Snow: 0mm Nov Precipitation: 59mm Snow: 11mm Dec Precipitation: 61mm Snow: 15mm
Precipitation
Snow

Romulus is a moderately rainy area, receiving approximately 924mm of precipitation annually, which averages out to around 77mm per month. The wettest month is July, averaging 103mm of rainfall. May and April also tend to see above-average precipitation. The driest month is November, with just 59mm. That's 44mm less than July, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 98cm accumulating over the season. February typically sees the most snow at around 28cm.

Wind

0km/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 14km/h Feb Wind Speed: 14km/h Mar Wind Speed: 14km/h Apr Wind Speed: 14km/h May Wind Speed: 12km/h Jun Wind Speed: 11km/h Jul Wind Speed: 10km/h Aug Wind Speed: 10km/h Sep Wind Speed: 11km/h Oct Wind Speed: 13km/h Nov Wind Speed: 14km/h Dec Wind Speed: 14km/h
Wind Speed

Romulus is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/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 14km/h in winter, 13km/h in spring, 10km/h in summer, 12km/h in autumn.

Seasons

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

7 days until Autumn

It is currently summer in Romulus, which began on June 21, 2026. Romulus 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 July at around 29°C, while the coldest stretch bottoms out in January near -6°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

Spring

Temperatures range from 0 to 21°C. Precipitation is moderate at around 265mm for the season, averaging 88mm per month. Winds are generally light, averaging 13km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 16 to 29°C. Precipitation is moderate at around 268mm for the season, averaging 89mm per month. Winds are generally light, averaging 10km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 2 to 24°C. Precipitation is moderate at around 204mm for the season, averaging 68mm per month. Expect around 11cm of snow accumulation during this period. Winds are generally light, averaging 12km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.

Winter

Temperatures range from -6 to 4°C. Precipitation is moderate at around 187mm for the season, averaging 62mm per month. Expect around 67cm of snow accumulation during this period. Winds are generally light, averaging 14km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Best Time to Visit

Jan -3°
Feb -1°
Mar
Apr
May 16°
Jun 21°
Jul 24°
Aug 22°
Sep 19°
Oct 12°
Nov
Dec

The best time to visit Romulus is during May, June, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 80mm per month. By contrast, July can be uncomfortably hot with highs reaching 29°C, while January is the coldest period with lows dropping to -6°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 Romulus 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
-6 °C
1 °C
14 km/h
66 mm
24 cm
Feb
-5 °C
4 °C
14 km/h
61 mm
28 cm
Mar
0 °C
9 °C
14 km/h
80 mm
14 cm
Apr
4 °C
15 °C
14 km/h
91 mm
6 cm
May
11 °C
21 °C
12 km/h
94 mm
0 cm
Jun
16 °C
27 °C
11 km/h
86 mm
0 cm
Jul
19 °C
29 °C
10 km/h
103 mm
0 cm
Aug
17 °C
28 °C
10 km/h
78 mm
0 cm
Sep Current
14 °C
24 °C
11 km/h
62 mm
0 cm
Oct
8 °C
18 °C
13 km/h
83 mm
0 cm
Nov
2 °C
9 °C
14 km/h
59 mm
11 cm
Dec
-3 °C
4 °C
14 km/h
61 mm
15 cm
Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)