Collin County (Plano)
May
Weather in Collin County for May 2025
Your guide to Collin County weather in May - trends and predictions
In general, the average temperature in Collin County at the beginning of May is 27.3 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 30.1 °F by the end of May.
The climate of Collin County in May is notably wet, with an average of 11 rainy days.
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20
Dry days
11
Rainy days
0
Snow days
29°/18°
Temperatures
20 km/h
Avg max wind
72 %
Avg humidity
Collin County in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  25° | 2 26° | 3  26° | 4 27° | |||
| 5  29° | 6 28° | 7 30° | 8 31° | 9  28° | 10 23° | 11 25° |
| 12 24° | 13 28° | 14 26° | 15 28° | 16 26° | 17  27° | 18  30° |
| 19  31° | 20 27° | 21 25° | 22 29° | 23 28° | 24 30° | 25 30° |
| 26 33° | 27 31° | 28 30° | 29 28° | 30 30° | 31 29° |
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Temperatures trend during May in Collin County
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May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 | Cloudy | 25° /17° | 2.5 mm | 6 | |
| May 2 | Cloudy | 26° /15° | 5.4 mm | 6 | |
| May 3 | Overcast | 26° /16° | 9.2 mm | 6 | |
| May 4 | Overcast | 27° /18° | 5.2 mm | 6 | |
| May 5 | Patchy rain possible | 29° /18° | 28 mm | 7 | |
| May 6 | Patchy rain possible | 28° /19° | 5.9 mm | 7 | |
| May 7 | Patchy rain possible | 30° /20° | 2.4 mm | 7 | |
| May 8 | Patchy rain possible | 31° /20° | 2.4 mm | 7 | |
| May 9 | Moderate rain at times | 28° /19° | 0.9 mm | 6 | |
| May 10 | Moderate or heavy rain shower | 23° /17° | 6.6 mm | 5 | |
| May 11 | Patchy rain possible | 25° /16° | 0.4 mm | 6 | |
| May 12 | Moderate or heavy rain shower | 24° /18° | 13.3 mm | 5 | |
| May 13 | Moderate or heavy rain shower | 28° /20° | 13.5 mm | 6 | |
| May 14 | Moderate or heavy rain shower | 26° /17° | 16.4 mm | 7 | |
| May 15 | Moderate or heavy rain shower | 28° /18° | 5.7 mm | 7 | |
| May 16 | Patchy rain possible | 26° /18° | 5.3 mm | 6 | |
| May 17 | Sunny | 27° /17° | 2.4 mm | 7 | |
| May 18 | Partly cloudy | 30° /18° | 0 mm | 8 | |
| May 19 | Heavy rain at times | 31° /20° | 11.2 mm | 8 | |
| May 20 | Overcast | 27° /19° | 1.2 mm | 7 | |
| May 21 | Cloudy | 25° /18° | 0.1 mm | 6 | |
| May 22 | Overcast | 29° /20° | 1.9 mm | 7 | |
| May 23 | Moderate rain at times | 28° /19° | 5.6 mm | 6 | |
| May 24 | Heavy rain at times | 30° /20° | 0.9 mm | 7 | |
| May 25 | Cloudy | 30° /19° | 0 mm | 7 | |
| May 26 | Partly cloudy | 33° /20° | 0.1 mm | 9 | |
| May 27 | Partly cloudy | 31° /19° | 0.6 mm | 8 | |
| May 28 | Partly cloudy | 30° /19° | 3.3 mm | 7 | |
| May 29 | Moderate or heavy rain shower | 28° /19° | 3.1 mm | 6 | |
| May 30 | Overcast | 30° /21° | 1.3 mm | 7 | |
| May 31 | Patchy rain possible | 29° /19° | 8.4 mm | 7 | |
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Important Notice
Our weather forecast for Collin County in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Collin County forecast closer to your planned date for the most up-to-date weather information.
Collin County in May - FAQ
What are the expected maximum and minimum temperatures in Collin County during May?
During May, expect a variety of temperatures with highs around 29° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Collin County during May?
Significant rainfall exceeding 296 mm is expected in Collin County during May, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Collin County during May?
The average wind speed in Collin County during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Collin County
Explore the daily rainfall trends and prepare for Collin Countys May weather 💧
UV exposure in Collin County during May
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Where is Collin County?Get accurate weather forecasts for Collin County, located at latitude 33.02 and longitude -96.699. Stay updated with localized weather information tailored for Collin County.
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