Saint Mary's County (California)
May
Weather in Saint Mary's County, Maryland for May 2026
Your guide to Saint Mary's County weather in May - trends and predictions
In general, the average temperature in Saint Mary's County at the beginning of May is 23.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.4 °F by the end of May.
Saint Mary's County in May brings notable rainfall, with an average of 18 rainy days and a total precipitation of 408.5 mm.
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Temperatures
Rain 🌧️
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13
Dry days
18
Rainy days
0
Snow days
22°/15°
Temperatures
22 km/h
Avg max wind
78 %
Avg humidity
Saint Mary's County Weather May
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Temperatures trend during May in Saint Mary's County
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May weather in Saint Mary's County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 25° /15° | 0.1 mm | 6 | |
| May 2 |  Cloudy | 28° /20° | 0 mm | 6 | |
| May 3 |  Heavy rain at times | 27° /19° | 1.3 mm | 6 | |
| May 4 |  Moderate or heavy rain shower | 22° /16° | 27 mm | 5 | |
| May 5 | Moderate or heavy rain shower | 21° /16° | 11.3 mm | 5 | |
| May 6 | Patchy rain possible | 21° /17° | 7.7 mm | 5 | |
| May 7 | Patchy rain possible | 22° /16° | 0.1 mm | 5 | |
| May 8 | Patchy rain possible | 23° /17° | 0.7 mm | 5 | |
| May 9 | Patchy rain possible | 17° /12° | 5.3 mm | 4 | |
| May 10 |  Overcast | 19° /11° | 0 mm | 4 | |
| May 11 | Overcast | 25° /15° | 0 mm | 6 | |
| May 12 | Patchy rain possible | 22° /14° | 1 mm | 5 | |
| May 13 | Moderate or heavy rain shower | 18° /17° | 36.2 mm | 4 | |
| May 14 | Patchy rain possible | 24° /17° | 27 mm | 5 | |
| May 15 | Patchy rain possible | 24° /17° | 2 mm | 5 | |
| May 16 | Patchy rain possible | 28° /17° | 0.3 mm | 6 | |
| May 17 | Overcast | 27° /19° | 0.4 mm | 6 | |
| May 18 | Overcast | 25° /19° | 0 mm | 6 | |
| May 19 | Overcast | 24° /14° | 0 mm | 5 | |
| May 20 | Overcast | 21° /14° | 0 mm | 5 | |
| May 21 | Moderate or heavy rain shower | 16° /13° | 18 mm | 4 | |
| May 22 | Moderate or heavy rain shower | 22° /14° | 18.5 mm | 5 | |
| May 23 |  Partly cloudy | 19° /13° | 0 mm | 5 | |
| May 24 |  Sunny | 21° /12° | 0 mm | 6 | |
| May 25 | Partly cloudy | 20° /14° | 0 mm | 6 | |
| May 26 | Overcast | 18° /15° | 0 mm | 4 | |
| May 27 | Overcast | 18° /14° | 0 mm | 4 | |
| May 28 |  Heavy rain | 14° /13° | 80.6 mm | 3 | |
| May 29 |  Fog | 20° /14° | 2 mm | 5 | |
| May 30 | Light rain shower | 21° /18° | 21.5 mm | 5 | |
| May 31 | Torrential rain shower | 18° /16° | 147.4 mm | 4 | |
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Important Notice
Our weather forecast for Saint Mary's 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 Saint Mary's County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Saint Mary's County in May - FAQ
What are the expected maximum and minimum temperatures in Saint Mary's County during May?
During May, expect a variety of temperatures with highs around 22° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Saint Mary's County during May?
Significant rainfall exceeding 408.5 mm is expected in Saint Mary's County during May, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Saint Mary's County during May?
The average wind speed in Saint Mary's County during May is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Saint Mary's County
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UV exposure in Saint Mary's County during May
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Where is Saint Mary's County?Get accurate weather forecasts for Saint Mary's County, located at latitude 38.3 and longitude -76.507. Stay updated with localized weather information tailored for Saint Mary's County.
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