REGION 13 FORECAST

INTERMOUNTAIN

SUMMARY: Winter temperatures and precipitation will be slightly below normal, on average. The coldest periods will be in early to mid-December, late January, and late February. Snowfall will be near normal, with the snowiest periods in early and late December, late January, and late February. April and May temperatures will be below normal in the north and above normal in the south, with near-normal precipitation. Summer temperatures will be cooler than normal in the north and above normal in the south, and it will be slightly rainier than normal. The hottest periods will be in late June, mid-July, and mid- to late August. September and October will be warmer than normal, with near-normal precipitation.

NOV. 2020: Temp. 38° (2° below avg.); precip. 1.5" (avg.). 1–6 Snow showers, then sunny, cool. 7–8 Showers, mild. 9–23 Snow showers, cold. 24–30 Rainy periods north, sunny south; mild.

DEC. 2020: Temp. 33° (2° above avg. north, 2° below south); precip. 1.5" (avg.). 1–4 Sunny, mild. 5–14 Snowstorm, then sunny, cold. 15–23 Rain and snow showers, mild. 24–31 Snowy periods, turning mild.

JAN. 2021: Temp. 34° (2° above avg.); precip. 1" (0.5" below avg.). 1–6 Rain and snow showers, mild. 7–15 Sunny, turning cold. 16–26 Snow showers, then sunny, mild. 27–31 Snowy periods, cold.

FEB. 2021: Temp. 33.5° (3° below avg. north, 2° above south); precip. 2" (0.5" above avg.). 1–7 Rainy periods, mild. 8–13 Snow showers, turning cold. 14–17 Sunny, mild. 18–28 Snowy periods, then sunny, cold.

MAR. 2021: Temp. 42° (1° below avg.); precip. 1" (0.5" below avg.). 1–8 Snow showers, then sunny, cold. 9–17 Rain and snow showers north; sunny, mild south. 18–26 Snow showers, cold. 27–31 Showers, mild.

APR. 2021: Temp. 49° (avg.); precip. 1" (avg.). 1–4 Sunny, mild. 5–11 Rainy periods north, snowstorm south; cool. 12–17 Showers, cool north; sunny, mild south. 18–24 Sunny, mild. 25–30 Rainy periods, mild.

MAY 2021: Temp. 58° (1° below avg. north, 3° above south); precip. 1" (avg.). 1–10 Rain, then sunny, turning warm. 11–17 Rainy periods, cool. 18–20 Sunny, warm. 21–25 Rainy periods, cool north; sunny, warm south. 26– 31 Sunny, warm.

JUNE 2021: Temp. 65° (1° below avg.); precip. 0.3" (0.2" below avg.). 1–9 Rainy periods, cool. 10–14 Sunny, warm. 15–20 Showers, then sunny, cool. 21–30 Isolated t-storms, turning hot.

JULY 2021: Temp. 73° (avg.); precip. 1.5" (1" above avg.). 1–7 A few t-storms, turning cool. 8–19 Scattered t-storms, hot. 20–31 Tstorms, then sunny, cool.

AUG. 2021: Temp. 71.5° (3° below avg. north, 2° above south); precip. 1" (0.5" above avg. north, 0.5" below south). 1–11 T-storms, then sunny, cool. 12–18 T-storms, warm. 19–28 Sunny, hot. 29–31 Showers, cool.

SEPT. 2021: Temp. 64° (2° above avg.); precip. 1.5" (0.5" above avg.). 1–9 Sunny, warm north; rainy periods south. 10–19 Sunny, warm north; showers, cool south. 20–25 Sunny, warm. 26–30 Showers, then sunny, cool.

OCT. 2021: Temp. 52° (1° above avg.); precip. 0.5" (0.5" below avg.). 1–13 Sunny; warm, then cool. 14–18 Rainy periods, cool. 19–31 Scattered showers, turning warm.

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