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Best time to visit · Washington, United States
May – September are the best time to visit Leavenworth on the climate data: September scores 94/100, with highs around 74°F (23°C) and 1.3 in (32 mm) of rain. October is a good shoulder-season month. The toughest months are December & January, mainly because of cool days.
Highs run from 37°F to 84°F across the year, and the yearly total is about 31.9 in (810 mm) of rain and snow.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 38°F3°C | 42°F5°C | 49°F9°C | 56°F13°C | 68°F20°C | 75°F24°C | 84°F29°C | 83°F29°C | 74°F23°C | 60°F15°C | 46°F8°C | 37°F3°C |
| Avg low | 27°F-3°C | 28°F-2°C | 32°F0°C | 37°F3°C | 46°F8°C | 52°F11°C | 58°F14°C | 58°F14°C | 51°F11°C | 41°F5°C | 33°F1°C | 26°F-3°C |
| Rain/snow | 4.8 in121 mm | 3.0 in77 mm | 3.5 in88 mm | 2.2 in55 mm | 2.0 in50 mm | 1.3 in34 mm | 0.5 in13 mm | 0.7 in17 mm | 1.3 in32 mm | 3.2 in81 mm | 4.6 in117 mm | 4.9 in125 mm |
| Humidity | 94% | 88% | 82% | 75% | 69% | 66% | 60% | 60% | 65% | 75% | 87% | 94% |
| Cloud | 76% | 70% | 73% | 70% | 65% | 59% | 36% | 38% | 47% | 63% | 74% | 76% |
| Comfort | 35 | 44 | 54 | 71 | 87 | 90 | 90 | 91 | 94 | 76 | 45 | 35 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. Temperatures were adjusted from the grid cell's ~997 m (3,271 ft) to Leavenworth's ~355 m (1,165 ft) elevation using the standard lapse rate of 6.5°C per 1,000 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The cold peaks here: highs of 37–42°F (3–5°C), and nights reach 26°F (-3°C). It's the wettest season, with about 12.7 in (323 mm) of rain or snow, 40% of the year's total. December – February are cold enough for snow. Comfort scores bottom out in December & January; the season averages 38/100.
Temperatures climb through the season, from 49°F highs in March to 68°F by May. About 7.6 in (193 mm) of rain falls across these months, 24% of the year's total. Lows bottom out around 32°F (0°C). May is among the best-scoring months (season average 71/100).
Peak warmth: highs of 75–84°F (24–29°C). It's the driest season, with only about 2.5 in (64 mm) of rain, 8% of the year's total. Lows bottom out around 52°F (11°C). Comfort peaks here: June – August rank with the year's best, and the season averages 90/100.
Temperatures slide from 74°F highs in September to 46°F by November. About 9.1 in (230 mm) of rain falls across these months, 28% of the year's total. Lows bottom out around 33°F (1°C). September is among the best-scoring months (season average 72/100).
By comfort score: 6 Great, 1 Good, 2 Fair and 3 Tough. Great months: May – October. Tap a month for its own guide.
May – September are the best time to visit Leavenworth on the climate data: September scores 94/100, with highs around 74°F (23°C) and 1.3 in (32 mm) of rain. October is a good shoulder-season month. The toughest months are December & January, mainly because of cool days.
December is the wettest month, averaging about 4.9 in (125 mm) of rain or snow. July is the driest, with about 0.5 in (13 mm). The yearly total is around 31.9 in (810 mm).
December is the coldest, with average lows of 26°F (-3°C) and highs of 37°F (3°C). The warmest is July, with average highs of 84°F (29°C).
Not very: summer (June – August) humidity averages 62%, and highs peak around 84°F (29°C), so heat matters more than mugginess.
On average, yes: lows fall below 32°F (0°C) in December – February, bottoming out around 26°F (-3°C) in December.
Poll the group on May – September dates, then plan the days, packing and costs together.
