Climate Insights for Bull Valley

Lincoln County, Illinois, United States

Hottest
Luglio
28°C peak
Coldest
Gennaio
-8°C low
Wettest
Maggio
128mm rain
Best to Visit
Agosto, Settembre
Mild temps & low rain

Climate Overview

The climate in Bull Valley is temperate. The average annual temperature is 10°C and approximately 1012mm of precipitation falls per year. Bull Valley receives a notable amount of rainfall throughout the year, including during its driest month. Bull Valley is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Luglio, Agosto, Giugno. The coldest months are Gennaio, Febbraio, Dicembre, when temperatures can drop to -8°C. Snowfall occurs from January to December, with around 78cm 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: -5° Min: -8° Feb Max: 2° Average: -3° Min: -7° Mar Max: 9° Average: 3° Min: -1° Apr Max: 15° Average: 9° Min: 4° May Max: 22° Average: 16° Min: 11° Jun Max: 27° Average: 21° Min: 17° Jul Max: 28° Average: 23° Min: 19° Aug Max: 27° Average: 22° Min: 17° Sep Max: 24° Average: 19° Min: 14° Oct Max: 17° Average: 12° Min: 7° Nov Max: 9° Average: 4° Min: 1° Dec Max: 3° Average: -1° Min: -3°
Max
Average
Min

Bull Valley has a wide annual temperature range, spanning 36°C from the coldest to warmest months. The warmest month is Luglio, when average highs reach 28°C and the mean temperature sits around 23°C. The coldest month is Gennaio, when overnight lows fall to -8°C and the daily average is -5°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, 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: 59mm Snow: 25mm Feb Precipitation: 47mm Snow: 16mm Mar Precipitation: 81mm Snow: 10mm Apr Precipitation: 109mm Snow: 6mm May Precipitation: 128mm Snow: 0mm Jun Precipitation: 103mm Snow: 0mm Jul Precipitation: 101mm Snow: 0mm Aug Precipitation: 85mm Snow: 0mm Sep Precipitation: 89mm Snow: 0mm Oct Precipitation: 92mm Snow: 2mm Nov Precipitation: 58mm Snow: 8mm Dec Precipitation: 60mm Snow: 12mm
Precipitation
Snow

Bull Valley is a moderately rainy area, receiving approximately 1012mm of precipitation annually, which averages out to around 84mm per month. The wettest month is May, averaging 128mm of rainfall. April and June also tend to see above-average precipitation. The driest month is February, with just 47mm. That's 81mm 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 78cm accumulating over the season. January typically sees the most snow at around 25cm.

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: 19km/h Feb Wind Speed: 20km/h Mar Wind Speed: 21km/h Apr Wind Speed: 21km/h May Wind Speed: 19km/h Jun Wind Speed: 18km/h Jul Wind Speed: 15km/h Aug Wind Speed: 15km/h Sep Wind Speed: 17km/h Oct Wind Speed: 20km/h Nov Wind Speed: 20km/h Dec Wind Speed: 20km/h
Wind Speed

Bull Valley is mildly breezy, with an average annual wind speed of 19km/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 21km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in August, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/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 20km/h in winter, 20km/h in spring, 16km/h in summer, 19km/h in autumn.

Seasons

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

93 days until Summer

It is currently spring in Bull Valley, which began on March 20, 2026. Bull Valley 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 28°C, while the coldest stretch bottoms out in Gennaio near -8°C. Summer is next, beginning on June 21, 2026 — 93 days from now.

Spring

Temperatures range from -1 to 22°C. Rainfall is heavy, totalling around 318mm across the season with a monthly average of 106mm. Winds are moderate at around 20km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 17 to 28°C. Precipitation is moderate at around 289mm for the season, averaging 96mm per month. Winds are moderate at around 16km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 1 to 24°C. Precipitation is moderate at around 239mm for the season, averaging 80mm per month. Expect around 10cm of snow accumulation during this period. Winds are moderate at around 19km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from -8 to 3°C. Precipitation is moderate at around 166mm for the season, averaging 55mm per month. Expect around 52cm of snow accumulation during this period. Winds are moderate at around 20km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Best Time to Visit

Jan -5°
Feb -3°
Mar
Apr
May 16°
Jun 21°
Jul 23°
Aug 22°
Sep 19°
Oct 12°
Nov
Dec -1°

The best time to visit Bull Valley is during Agosto and Settembre, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 87mm per month. By contrast, Luglio can be uncomfortably hot with highs reaching 28°C, while Gennaio is the coldest period with lows 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 Bull Valley 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
-1 °C
19 km/h
59 mm
25 cm
Feb
-7 °C
2 °C
20 km/h
47 mm
16 cm
Mar Current
-1 °C
9 °C
21 km/h
81 mm
10 cm
Apr
4 °C
15 °C
21 km/h
109 mm
6 cm
May
11 °C
22 °C
19 km/h
128 mm
0 cm
Jun
17 °C
27 °C
18 km/h
103 mm
0 cm
Jul
19 °C
28 °C
15 km/h
101 mm
0 cm
Aug
17 °C
27 °C
15 km/h
85 mm
0 cm
Sep
14 °C
24 °C
17 km/h
89 mm
0 cm
Oct
7 °C
17 °C
20 km/h
92 mm
2 cm
Nov
1 °C
9 °C
20 km/h
58 mm
8 cm
Dec
-3 °C
3 °C
20 km/h
60 mm
12 cm
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Metric (°C, km/h)