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Weather & Climate in Surprise Valley No. 9, SK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Surprise Valley No. 9 has a cool climate with an average annual temperature of 41°F (5°C). Winters average 9°F in January while summers reach 70°F in July / a wide seasonal temperature swing of 61°F. The area gets 310 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 14.1 inches (drier than the 38-inch national average). The area receives 2.2 inches of snow annually. The city sits at an elevation of 2,211 feet.
Temperature
9°F Jan (-13°C)
70°F Jul (21°C)
| Annual Average | 41.4°F |
| 23% below US avg | |
| January Average | 9°F (-13°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 310 days/yr |
Geography
| Elevation | 2,211 ft (674 m) |
| Area | 309.9 sq mi (802.6 km²) |
| Population Density | 1/sq mi |
| Coordinates | 49.0994°N, 104.6310°W |
| Timezone | America/Regina |
Precipitation & Snow
Air Quality
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Feb 25, 2014 | 23 km N of Brockton, Montana | M3.8 | 84 km | 5 km |
| Jul 29, 1998 | 16 km WNW of Froid, Montana | M3.8 | 81 km | 5 km |
| Nov 11, 1998 | 10 km SW of Grenora, North Dakota | M3.5 | 75 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Wildfire History
15 wildfires (100+ acres) recorded within 100 km. Largest: FLAGSTAFF HILL (9,129 acres, 2016).
| Year | Name | Acres Burned | Distance |
| 2016 | FLAGSTAFF HILL | 9,129 | 64 km |
| 2012 | HIGHWAY 13-20 | 8,372 | 98 km |
| 2018 | BUFFALO PASTURE | 7,624 | 98 km |
| 1999 | OUTLOOK | 6,292 | 26 km |
| 1999 | ANTELOPE | 5,118 | 52 km |
| 2022 | BLISTER | 3,298 | 95 km |
| 2007 | W-RX-F SANDHILLS SUB UNIT B | 2,381 | 77 km |
| 2018 | MTMLR-FY18-RX-WUI DEEP LAKE | 2,088 | 73 km |
| 2022 | MTMLR-FY22-RX-BRIDGERMAN | 1,852 | 72 km |
| 2017 | FOUR BUTTES | 1,711 | 94 km |
| 2008 | NORTH SOUTH LAKE CREEK SU A | 1,367 | 70 km |
| 2011 | W-RX-F EAST ML BRIGERMANN | 1,197 | 74 km |
| 2023 | MTMLR-HFR-FY23-RX | 1,128 | 80 km |
| 2007 | H-RX-F BRIGERMANN 2007 | 1,043 | 73 km |
| 2022 | MTMLR-FY22-RX-NORTHSHORE | 1,015 | 70 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 9°F (-13°C) | 0.4 in | Coldest |
| February | 17°F (-9°C) | 0.3 in | Driest |
| March | 28°F (-2°C) | 0.6 in | |
| April | 43°F (6°C) | 0.9 in | |
| May | 56°F (13°C) | 2.2 in | |
| June | 65°F (18°C) | 2.6 in | Wettest |
| July | 70°F (21°C) | 2.2 in | Warmest |
| August | 69°F (20°C) | 1.7 in | |
| September | 57°F (14°C) | 1.5 in | |
| October | 45°F (7°C) | 0.8 in | |
| November | 27°F (-3°C) | 0.4 in | |
| December | 13°F (-10°C) | 0.5 in |
Surprise Valley No. 9 has a seasonal temperature swing of 61°F / from 9°F in January to 70°F in July. Total annual precipitation is 14.1 inches, with June being the wettest month (2.6") and February the driest (0.3").