Jefferson County (Fairfield)
May
Weather in Jefferson County, Iowa for May 2027
Your guide to Jefferson County weather in May - trends and predictions
In general, the average temperature in Jefferson County at the beginning of May is 17.3 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 23.9 °C by the end of May.
The climate of Jefferson County in May is notably wet, with an average of 11 rainy days, and a total of 67.2 mm of precipitation.
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Temperatures
Rain 🌧️
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20
Dry days
11
Rainy days
0
Snow days
21°/10°
Temperatures
20 km/h
Avg max wind
71 %
Avg humidity
Jefferson County Weather May
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Temperatures trend during May in Jefferson County
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May weather in Jefferson County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Moderate rain at times | 15° /7° | 4 mm | 6 | |
| May 2 |  Patchy rain possible | 15° /6° | 0.2 mm | 7 | |
| May 3 | Patchy rain possible | 17° /6° | 1.6 mm | 5 | |
| May 4 |  Overcast | 21° /7° | 0.6 mm | 7 | |
| May 5 | Overcast | 16° /8° | 0.8 mm | 5 | |
| May 6 | Overcast | 16° /7° | 0 mm | 6 | |
| May 7 | Overcast | 21° /8° | 0.1 mm | 8 | |
| May 8 |  Cloudy | 19° /8° | 0.9 mm | 5 | |
| May 9 |  Sunny | 22° /6° | 0 mm | 8 | |
| May 10 | Sunny | 23° /7° | 0 mm | 9 | |
| May 11 | Sunny | 23° /8° | 0 mm | 9 | |
| May 12 | Cloudy | 27° /12° | 0.4 mm | 8 | |
| May 13 | Patchy rain possible | 24° /14° | 0.2 mm | 8 | |
| May 14 | Overcast | 27° /12° | 0 mm | 9 | |
| May 15 | Overcast | 29° /15° | 3 mm | 6 | |
| May 16 | Patchy rain possible | 27° /16° | 7.4 mm | 6 | |
| May 17 | Overcast | 23° /13° | 2.7 mm | 6 | |
| May 18 | Overcast | 24° /12° | 5.4 mm | 5 | |
| May 19 | Moderate or heavy rain shower | 21° /10° | 17 mm | 5 | |
| May 20 | Moderate or heavy rain shower | 18° /9° | 12.9 mm | 8 | |
| May 21 | Overcast | 15° /8° | 0 mm | 4 | |
| May 22 | Overcast | 19° /8° | 0.6 mm | 5 | |
| May 23 | Overcast | 21° /10° | 1.9 mm | 4 | |
| May 24 | Overcast | 23° /12° | 0.1 mm | 8 | |
| May 25 |  Heavy rain at times | 20° /12° | 2.2 mm | 7 | |
| May 26 |  Fog | 23° /10° | 0 mm | 7 | |
| May 27 | Overcast | 24° /13° | 0 mm | 7 | |
| May 28 | Moderate rain at times | 22° /15° | 1.5 mm | 8 | |
| May 29 | Fog | 22° /12° | 0 mm | 8 | |
| May 30 |  Thundery outbreaks possible | 27° /14° | 0 mm | 8 | |
| May 31 | Sunny | 29° /15° | 0 mm | 9 | |
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Important Notice
Our weather forecast for Jefferson 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 Jefferson County forecast closer to your planned date for the most up-to-date weather information.
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Jefferson County in May - FAQ
What are the expected maximum and minimum temperatures in Jefferson County during May?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Jefferson County during May?
Moderate rainfall is anticipated in Jefferson County during May, with a total of 67.2 mm spread over approximately 11 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Jefferson County during May?
The average wind speed in Jefferson County during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Jefferson County
Explore the daily rainfall trends and prepare for Jefferson Countys May weather 💧
Typically, Jefferson County has 11 rainy days in May with a total of 67.2 mm of rainfall.
UV exposure in Jefferson County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Jefferson County?Get accurate weather forecasts for Jefferson County, located at latitude 41.009 and longitude -91.963. Stay updated with localized weather information tailored for Jefferson County.
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