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Idaho Climate
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|
Climate (All temperatures
Fahrenheit) |
| Highest
Temperature |
The highest temperature recorded in Idaho is 118°,
Fahrenheit. This record high was recorded on July 28,
1934 at Orofino. |
| Lowest Temperature |
The lowest temperature in Idaho, a very chilly -60°,
was recorded on January 16, 1943 at Island Park Dam. |
| Average
Temperature |
Monthly average temperatures range from a high of
90.6 degrees to a low of 15.1 degrees. |
| Climate |
Idaho抯 climate is diverse. It is influenced by
Pacific weather patterns, which help moderate
temperature extremes. Generally, the northern part of
the state has greater precipitation than either
southwestern or southeastern Idaho. The southern part of
the state has warmer summer temperatures than the north
and is drier throughout the year. Southeastern Idaho,
however, tends to be cooler than the west and drier than
the north. Idaho抯 growing season varies from about 200
days near the city of Lewiston to very brief at high
altitudes. Idaho has no hurricanes and tornadoes are
extremely rare. Winds may accompany cold fronts and
thunderstorms, but hail damage in the state is very
small compared to that which occurs in the central
United States.
Average yearly precipitation for Idaho, from 1961 to
1990, is shown on this chart from Oregon State
University. |
Geographically
representative climate examples are:
| |
Elevation |
Annual Mean
Precipitation |
Mean
Snowfall |
July Avg
High Temp |
Jan Avg
Low Temp |
July Avg
PM Humidity |
|
Boise |
2,840 |
12.0 in. |
21.3 in. |
90.5 |
21.2 |
22% |
|
Coeur d扐lene |
2,160 |
25.7 in. |
52.2 in. |
85.1 |
22.3 |
34% |
|
Idaho Falls |
4,730 |
10.9 in. |
37.5 in. |
86.0 |
10.0 |
25% |
|
Lewiston |
1,440 |
12.4 in. |
19.8 in. |
89.0 |
27.1 |
34% |
|
Pocatello |
4,450 |
12.2 in. |
47.2 in. |
88.0 |
14.4 |
38% |
|
Twin Falls |
3,960 |
10.5 in. |
31.3 in. |
85.0 |
19.0 |
27% |
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All temperatures given in
Fahrenheit |
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