Umatilla County (Pendleton)
March
Weather in Umatilla County, Oregon for March 2026
Your guide to Umatilla County weather in March - trends and predictions
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Until now, March 2026 in Umatilla County is slightly cooler than the historical average by -1 °F.
The forecast for the upcoming days in Umatilla County predicts a temperature of 13.9 °F, which is slightly above the historical average.
In general, the average temperature in Umatilla County at the beginning of March is 10.6 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 13.7 °F by the end of March.
Umatilla County in March brings notable rainfall, with an average of 19 rainy days and a total precipitation of 156.7 mm.
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12
Dry days
19
Rainy days
0
Snow days
12°/3°
Temperatures
21 km/h
Avg max wind
74 %
Avg humidity
Umatilla County Weather March
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Temperatures trend during March in Umatilla County
See the weather trend as well as the moving average line
March weather in Umatilla County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Mar. 1 |  Overcast | 12° /1° | 0 mm | 2 | |
| Mar. 2 |  Patchy rain possible | 12° /3° | 0.1 mm | 2 | |
| Mar. 3 | Patchy rain possible | 12° /3° | 0.2 mm | 2 | |
| Mar. 4 | Patchy rain possible | 10° /2° | 2.1 mm | 2 | |
| Mar. 5 | Overcast | 8° /0° | 0 mm | 2 | |
| Mar. 6 | Patchy rain possible | 8° /0° | 0.1 mm | 2 | |
| Mar. 7 |  Partly cloudy | 12° /0° | 0 mm | 4 | |
| Mar. 8 | Overcast | 16° /1° | 0 mm | 4 | |
| Mar. 9 | Overcast | 10° /1° | 0 mm | 3 | |
| Mar. 10 | Patchy rain possible | 9° /2° | 0.3 mm | 2 | |
| Mar. 11 | Patchy rain possible | 11° /4° | 0.2 mm | 2 | |
| Mar. 12 | Patchy rain possible | 10° /6° | 3.1 mm | 0.4 | |
| Mar. 13 |  Moderate rain | 12° /7° | 9.4 mm | 0 | |
| Mar. 14 | Moderate rain | 7° /0° | 18.7 mm | 2 | |
| Mar. 15 | Overcast | 10° /0° | 0.1 mm | 1 | |
| Mar. 16 | Overcast | 14° /6° | 0.1 mm | 3 | |
| Mar. 17 | Partly cloudy | 20° /8° | 0 mm | 4 | |
| Mar. 18 |  Sunny | 23° /10° | 0 mm | 5 | |
| Mar. 19 | Partly cloudy | 24° /12° | 0 mm | 5 | |
| Mar. 20 | Sunny | 22° /12° | 0 mm | 5 | |
| Mar. 21 | Partly cloudy | 12° /5° | 0 mm | 3 | |
| Mar. 22 | Sunny | 8° /1° | 0 mm | 2 | |
| Mar. 23 | Sunny | 12° /0° | 0 mm | 3 | |
| Mar. 24 | Patchy rain possible | 12° /2° | 1.6 mm | 2 | |
| Mar. 25 | Patchy rain possible | 9° /3° | 1.5 mm | 2 | |
| Mar. 26 | Partly cloudy | 21° /9° | 1.3 mm | 6 | |
| Mar. 27 |  Moderate rain at times | 16° /8° | 1.9 mm | 4 | |
| Mar. 28 | Moderate or heavy rain shower | 12° /7° | 8.1 mm | 3 | |
| Mar. 29 | Partly cloudy | 12° /3° | 0.8 mm | 4 | |
| Mar. 30 | Overcast | 14° /-1° | 0 mm | 3 | |
| Mar. 31 | Moderate or heavy rain shower | 12° /3° | 71 mm | 3 | |
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Important Notice
Our weather forecast for Umatilla County in March 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 Umatilla County forecast closer to your planned date for the most up-to-date weather information.
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Umatilla County in March - FAQ
What are the expected maximum and minimum temperatures in Umatilla County during March?
Prepare for cooler days with highs just around 12° and colder nights, dipping below 3°.
How much rainfall should be expected in Umatilla County during March?
Significant rainfall exceeding 156.7 mm is expected in Umatilla County during March, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Umatilla County during March?
The average wind speed in Umatilla County during March is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
March rainfall patterns in Umatilla County
Explore the daily rainfall trends and prepare for Umatilla Countys March weather 💧
Typically, Umatilla County has 19 rainy days in March with a total of 156.7 mm of rainfall.
UV exposure in Umatilla County during March
Stay informed about UV levels for safe outdoor activities throughout the month of March ☀️
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Where is Umatilla County?Get accurate weather forecasts for Umatilla County, located at latitude 45.672 and longitude -118.789. Stay updated with localized weather information tailored for Umatilla County.
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