Best time to visit Gillette, WY

A month-by-month travel weather guide based on NOAA 30-year climate normals.

The most comfortable travel window in Gillette runs from May through September — 5 months of pleasant temperatures and modest rainfall.

January Cold
High
36.2°F
Low
15.8°F
Precip
0.59 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 9h 2m

February Cold
High
37.6°F
Low
16.8°F
Precip
0.78 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 10h 13m

March Cool
High
48.7°F
Low
24.8°F
Precip
1.13 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 11h 41m

April Cool
High
56.4°F
Low
31.7°F
Precip
2.13 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 13h 14m

May Good
High
65.9°F
Low
41.0°F
Precip
3.27 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 14h 35m

June Excellent
High
77.0°F
Low
50.2°F
Precip
2.54 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 15h 16m

July Good
High
86.4°F
Low
57.0°F
Precip
1.68 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 15h 1m

August Good
High
85.4°F
Low
55.7°F
Precip
1.38 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 13h 51m

September Good
High
75.3°F
Low
46.4°F
Precip
1.25 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 12h 17m

October Cool
High
59.2°F
Low
34.4°F
Precip
1.57 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 10h 44m

November Cool
High
46.2°F
Low
24.1°F
Precip
0.63 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 9h 22m

December Cold
High
35.8°F
Low
16.1°F
Precip
0.64 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 8h 41m

Looking for similar climates? See Gillette's climate twins. Or jump straight to the full climate profile.