Climate Insights for Gregory M Simmons Memorial Airport

Waukesha County, Texas, United States

Hottest
July
36°C peak
Coldest
January
3°C low
Wettest
May
100mm rain
Best to Visit
March, April, October
Mild temps & low rain

Climate Overview

The climate in Gregory M Simmons Memorial Airport is warm and mild. The average annual temperature is 19°C and approximately 714mm of precipitation falls per year. May is the wettest month, receiving around 100mm of rainfall. Gregory M Simmons Memorial Airport 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, December, February, when temperatures can drop to 3°C.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 16° Average: 8° Min: 3° Feb Max: 19° Average: 11° Min: 6° Mar Max: 23° Average: 16° Min: 11° Apr Max: 26° Average: 19° Min: 13° May Max: 30° Average: 23° Min: 18° Jun Max: 34° Average: 28° Min: 22° Jul Max: 36° Average: 30° Min: 24° Aug Max: 35° Average: 29° Min: 24° Sep Max: 31° Average: 25° Min: 20° Oct Max: 27° Average: 19° Min: 14° Nov Max: 21° Average: 14° Min: 8° Dec Max: 16° Average: 9° Min: 4°
Max
Average
Min

Temperatures in Gregory M Simmons Memorial Airport vary considerably across the year, with a 33°C difference between the coldest and warmest months. July is the hottest month, with daytime highs reaching 36°C and an average of 30°C. January is the coolest month, with minimum temperatures around 3°C and an average of 8°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 6°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 29mm Snow: 1mm Feb Precipitation: 49mm Snow: 1mm Mar Precipitation: 82mm Snow: 0mm Apr Precipitation: 83mm Snow: 0mm May Precipitation: 100mm Snow: 0mm Jun Precipitation: 63mm Snow: 0mm Jul Precipitation: 20mm Snow: 0mm Aug Precipitation: 47mm Snow: 0mm Sep Precipitation: 88mm Snow: 0mm Oct Precipitation: 78mm Snow: 0mm Nov Precipitation: 33mm Snow: 0mm Dec Precipitation: 42mm Snow: 3mm
Precipitation
Snow

Gregory M Simmons Memorial Airport is a relatively dry area, receiving approximately 714mm of precipitation annually, which averages out to around 59mm per month. The wettest month is May, averaging 100mm of rainfall. September and April also tend to see above-average precipitation. The driest month is July, with just 20mm. That's 81mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 4km/h Feb Wind Speed: 5km/h Mar Wind Speed: 5km/h Apr Wind Speed: 5km/h May Wind Speed: 5km/h Jun Wind Speed: 4km/h Jul Wind Speed: 4km/h Aug Wind Speed: 4km/h Sep Wind Speed: 4km/h Oct Wind Speed: 4km/h Nov Wind Speed: 4km/h Dec Wind Speed: 4km/h
Wind Speed

Gregory M Simmons Memorial Airport is relatively calm, with an average annual wind speed of 4km/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 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

Seasons

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

7 days until Summer

It is currently spring in Gregory M Simmons Memorial Airport, which began on March 20, 2026. Gregory M Simmons Memorial Airport 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 36°C, while the coldest stretch bottoms out in January near 3°C. Summer is next, beginning on June 21, 2026 — 7 days from now.

Spring

Temperatures range from 11 to 30°C. Precipitation is moderate at around 266mm for the season, averaging 89mm per month. Winds are generally light, averaging 5km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 22 to 36°C. Rainfall is relatively light, with around 130mm over the season and a monthly average of 43mm. Winds are generally light, averaging 4km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 8 to 31°C. Precipitation is moderate at around 198mm for the season, averaging 66mm per month. Winds are generally light, averaging 4km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from 3 to 19°C. Rainfall is relatively light, with around 120mm over the season and a monthly average of 40mm. Winds are generally light, averaging 4km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan
Feb 11°
Mar 16°
Apr 19°
May 23°
Jun 28°
Jul 30°
Aug 29°
Sep 25°
Oct 19°
Nov 14°
Dec

The best time to visit Gregory M Simmons Memorial Airport is during March, April and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 81mm per month. By contrast, July can be uncomfortably hot with highs reaching 36°C, while January is the coldest period with lows dropping to 3°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 Gregory M Simmons Memorial Airport 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. 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
3 °C
16 °C
4 km/h
29 mm
1 cm
Feb
6 °C
19 °C
5 km/h
49 mm
1 cm
Mar
11 °C
23 °C
5 km/h
82 mm
0 cm
Apr
13 °C
26 °C
5 km/h
83 mm
0 cm
May
18 °C
30 °C
5 km/h
100 mm
0 cm
Jun Current
22 °C
34 °C
4 km/h
63 mm
0 cm
Jul
24 °C
36 °C
4 km/h
20 mm
0 cm
Aug
24 °C
35 °C
4 km/h
47 mm
0 cm
Sep
20 °C
31 °C
4 km/h
88 mm
0 cm
Oct
14 °C
27 °C
4 km/h
78 mm
0 cm
Nov
8 °C
21 °C
4 km/h
33 mm
0 cm
Dec
4 °C
16 °C
4 km/h
42 mm
3 cm
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