Climate of Dewey

Dewey has a semi-arid climate. It hardly rains here. The average annual temperature for Dewey is 9° degrees and there is about 287 mm of rain in a year. It is dry for 188 days a year with an average humidity of 70% and an UV-index of 3.

Climate averages for the whole year

Day: the average daily temperature during the day is between -4°C and 25°C
Night:the average nighttime temperature is between -13°C and 8°C
Rain: it rains 94 days and there is a total of approximately 287 mm rainfall
Snow: it snows an average of 102 days per year
Sun hours: throughout the year there are 3009 sun hours

Maximum temperature:	between -4°C and 25°C
Warmest month:	25°C in July
Coldest month:	-4°C in December
Night temperature:	between -13°C and 8°C
Dry days:	169 days
Days with rain:	94 days
Days with snow:	102 days
Total rain sum:	287 mm
Hours of sunshine:	3009 hours

Climate of Dewey
Temperature graph
Precipitation graph
Climate chart of Dewey
The best travel time for Dewey
Climate of Dewey by month
Experiences with the weather of Dewey

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These are the travel companies where you can book a trip to Dewey:

Booking.com

Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Dewey.

Precipitation graph

This graph shows the average amount of rainfall per month for Dewey.

Climate table of Dewey

In this climate table you can see at a glance what the average weather per month is for Dewey. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Dewey might be like in a given month.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day temp. (°C)	-2	-2	2	7	13	19	25	24	19	10	2	-4
Night temp. (°C)	-12	-12	-7	-4	1	5	8	8	5	-1	-8	-13
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Precipitation (mm)	17	23	30	41	39	37	14	13	18	21	16	18
Days with rain	4	5	8	12	14	11	7	7	8	8	4	6
Days with snow	14	17	16	13	5	1	-	-	1	7	12	16
Dry days	13	6	7	5	12	18	24	24	21	16	14	9
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sun hours per day	5	5	7	9	10	11	12	12	10	7	6	5
Wind force (Bft)	2	2	2	2	2	2	2	2	2	2	2	2
UV-index	2	1	2	2	4	5	5	4	3	2	2	2

Best time to visit Dewey

The best time to visit Dewey in the state of Montana is from June through September. In this period you have a pleasant temperature and almost no precipitation. The highest average temperature in Dewey is 25°C in July and the lowest is -4°C in December.

Climate of Dewey by month

What is the average climate in a given month for Dewey? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

January