Klamath Falls weather in May: Klamath Falls, Oregon: normal highs, lows, rain and records for May
Klamath Falls in May has a normal high of 67°F and a normal low of 36°F, a daily mean of 52°F, rising from 63°F on the 1st to 71°F by the 31st. Measurable precipitation falls on 8 days in a normal May, 1.04 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 20°C and low of 2°C, 26 mm of precipitation in May.
- NOAA stationKlamath Falls International Airport
- Station IDUSW00094236
- Location42.15°N 121.72°W
- Elevation4,084 ft (1,245 m)
- Population22,174
- Jan 42° 22°
- Feb 46° 24°
- Mar 52° 27°
- Apr 58° 29°
- May 67° 36°
- Jun 76° 41°
- Jul 86° 48°
- Aug 85° 47°
- Sep 78° 39°
- Oct 64° 31°
- Nov 49° 25°
- Dec 40° 21°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Klamath Falls in May?
The normal high is 67°F and the normal low 36°F, for a daily mean of 51.7°F. May is 8.2°F warmer than April and 7.1°F cooler than June. May is the 5th warmest month of the year in Klamath Falls and the 6th wettest. Across the month the normal high rises 8°F, from 63°F on May 1 to 71°F on May 31. From one year to the next May's mean temperature typically moves about 2.9°F either way (NOAA's standard deviation), so roughly two Mays in three average between 49°F and 55°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 28%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 63°F | 33°F | 28% | 10% |
| May 8 | 65°F | 35°F | 27% | 10% |
| May 15 | 67°F | 36°F | 27% | 10% |
| May 22 | 69°F | 38°F | 25% | 10% |
| May 31 | 71°F | 39°F | 22% | 8% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 63°F | 33°F | 28% | 10% | 14 h |
| May 2 | 63°F | 33°F | 27% | 10% | 14 h |
| May 3 | 63°F | 33°F | 27% | 10% | 14 h 10 min |
| May 4 | 64°F | 33°F | 27% | 10% | 14 h 10 min |
| May 5 | 64°F | 34°F | 27% | 10% | 14 h 10 min |
| May 6 | 64°F | 34°F | 27% | 10% | 14 h 10 min |
| May 7 | 65°F | 34°F | 27% | 10% | 14 h 10 min |
| May 8 | 65°F | 35°F | 27% | 10% | 14 h 20 min |
| May 9 | 65°F | 35°F | 27% | 10% | 14 h 20 min |
| May 10 | 66°F | 35°F | 27% | 10% | 14 h 20 min |
| May 11 | 66°F | 35°F | 27% | 10% | 14 h 20 min |
| May 12 | 66°F | 36°F | 27% | 10% | 14 h 30 min |
| May 13 | 67°F | 36°F | 27% | 10% | 14 h 30 min |
| May 14 | 67°F | 36°F | 27% | 10% | 14 h 30 min |
| May 15 | 67°F | 36°F | 27% | 10% | 14 h 30 min |
| May 16 | 67°F | 37°F | 26% | 10% | 14 h 30 min |
| May 17 | 68°F | 37°F | 26% | 10% | 14 h 40 min |
| May 18 | 68°F | 37°F | 26% | 10% | 14 h 40 min |
| May 19 | 68°F | 37°F | 26% | 10% | 14 h 40 min |
| May 20 | 68°F | 37°F | 26% | 10% | 14 h 40 min |
| May 21 | 69°F | 38°F | 25% | 10% | 14 h 40 min |
| May 22 | 69°F | 38°F | 25% | 10% | 14 h 50 min |
| May 23 | 69°F | 38°F | 25% | 10% | 14 h 50 min |
| May 24 | 69°F | 38°F | 25% | 10% | 14 h 50 min |
| May 25 | 70°F | 38°F | 24% | 9% | 14 h 50 min |
| May 26 | 70°F | 38°F | 24% | 9% | 14 h 50 min |
| May 27 | 70°F | 39°F | 24% | 9% | 14 h 50 min |
| May 28 | 70°F | 39°F | 24% | 9% | 15 h |
| May 29 | 71°F | 39°F | 23% | 9% | 15 h |
| May 30 | 71°F | 39°F | 23% | 9% | 15 h |
| May 31 | 71°F | 39°F | 22% | 8% | 15 h |
- Normal high
- 67°FMay average
- Normal low
- 36°FMay average
- Precipitation
- 1.04 inmonth total
- Days with precipitation
- 80.01 inch or more
- Nights at 32°F or colder
- 9
- Daylight
- 14 h to 15 hMay 1 to May 31
- Days at 70°F or more
- 12
- Days at 80°F or more
- 3
- Sunshine
- 80%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094236; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Klamath Falls in May?
On a given May day the chance of 0.01 inch or more is 26% on average, highest around May 1 (28%). In all, 1.04 in falls on 8 days of a normal May.
In a normal May in Klamath Falls, 9 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094236.
How humid and windy is Klamath Falls in May?
At 3 p.m. the normal temperature is 69°F with 31% relative humidity and a dew point of 37°F; at 6 a.m. it is 47°F with 81% humidity. The wind averages 7.1 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 47°F | 41°F | 81% | 3.0 mph | 51% |
| 9 a.m. | 58°F | 41°F | 52% | 6.2 mph | 46% |
| noon | 66°F | 38°F | 36% | 8.2 mph | 42% |
| 3 p.m. | 69°F | 37°F | 31% | 11.2 mph | 37% |
| 6 p.m. | 65°F | 39°F | 38% | 12.4 mph | 41% |
| 9 p.m. | 55°F | 42°F | 61% | 7.4 mph | 52% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00094236. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for May in Klamath Falls?
The warmest May temperature on Klamath Falls's official record (since 1897) is 98°F, on May 30, 1986; the coldest is 17°F, on May 6, 1968. The wettest May brought 4.83 in (1998); the snowiest, 5.0 inches (1922).
The May mean against the 1991-2020 normal of 51.7°F: 2021 52.5°F (+0.8), 2022 47.1°F (−4.6), 2023 54.8°F (+3.1), 2024 49.9°F (−1.9), 2025 54.6°F (+2.9), 2026 54.0°F (+2.3). 4 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 52.5°F | +0.8°F | 0.10 in |
| 2022 | 47.1°F | −4.6°F | 0.41 in |
| 2023 | 54.8°F | +3.1°F | 2.24 in |
| 2024 | 49.9°F | −1.9°F | 0.72 in |
| 2025 | 54.6°F | +2.9°F | 0.31 in |
| 2026 | 54.0°F | +2.3°F | 1.89 in |
Source: records: ACIS, NWS threaded record LMTthr; recent months: ACIS, station USW00094236. Records and recent months use complete months only.
How does May in Klamath Falls compare across Oregon?
Across the 105 places PlainClimate covers in Oregon, May normal highs run from 54°F in Government Camp to 76°F in Ontario; Klamath Falls's is 67°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.