Weather in Montana

Calculated from weather data of Billings Logan International Airport (KBIL) between 2020 and 2024.

Maximum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	37.0	34.0	38.0	40.0	42.0	39.0
February	34.0	44.0	38.0	39.0	25.0	39.0
March	47.0	47.0	37.0	51.0	53.0	49.0
April	57.0		58.0	51.0	57.0	56.0
May	68.0		73.0	65.0	67.0	67.0
June	79.0		74.0	77.0	89.0	79.0
July	89.0		87.0	91.0	95.0	87.0
August	87.0		87.0	90.0	85.0	89.0
September	77.0		78.0	82.0	80.0	79.0
October	58.0		57.0	63.0	63.0	55.0
November	47.0		52.0	37.0	54.0	50.0
December	39.0		46.0	28.0	36.0	44.0
Average	58.0	42.0	61.0	61.0	62.0	61.0

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	20.0	16	23	20	26	22
February	17.0	27	21	18	11	23
March	27.0	28	22	30	30	28
April	35.0		35	30	35	33
May	46.0		49	44	43	45
June	55.0		55	53	58	55
July	62.0		60	62	65	60
August	60.0		62	63	59	61
September	51.0		53	54	52	50
October	38.0		39	42	42	35
November	30.0		32	22	35	31
December	23.0		29	11	19	28
Average	37.0	23.0	40.0	38.0	40.0	39.0

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
86 °F or warmer	0	41	58	71	57
77 °F or warmer	0	97	95	112	106
68 °F or warmer	1	148	141	155	148
32 °F or colder	60	129	118	113	130

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	7.5	10	13	9	5	4
February	16.9	16	18	15	18	12
March	11.8	19	18	16	5	14
April	13.1		12	14	10	11
May	8.4		6	12	6	10
June	5.9		12	7	1	9
July	0.9		1	1	1	0
August	2.8		3	3	7	0
September	5.1		3	4	0	3
October	10.1		20	5	9	14
November	8.0		4	16	3	3
December	8.4		6	9	10	5
Average	8.8	15.5	9.5	8.9	5.9	6.9

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (miles per hour)

Month	Average	2024	2023	2022	2021	2020
January	13.7	13	13	15	13	13
February	12.7	11	14	15	12	15
March	10.3	9	9	11	11	12
April	11.5		11	13	11	12
May	9.7		8	11	10	10
June	9.4		8	10	9	10
July	8.2		8	8	9	8
August	8.9		10	10	9	8
September	9.6		9	9	10	12
October	11.7		10	11	11	13
November	13.1		12	13	14	14
December	13.0		14	11	11	15
Average	10.8	11.0	10.2	11.3	10.6	11.5

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	SW	W	W	W	W
February	W	W	W	W	W
March	N	N	W	W	W
April		W	NW	W	NW
May		NE	NW	N	NW
June		N	W	NW	W
July		SW	W	S	W
August		W	W	W	SW
September		SW	W	W	W
October		W	W	W	W
November		SW	W	W	W
December		SW	W	W	W

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Montana weather Q&A

What is the warmest month in Montana?

The warmest month is July with an average temperature of 89 °F over the past years.

What is the coldest month in Montana?

The coldest month is February with an average daytime temperature of 34 °F in the past few years.

Which month is the wettest in Montana?

Chance of precipitation is the highest in February with a probability of around 17.0 %.

Which month is the driest in Montana?

The least rainfall and snow can be expected in July. The probability is about 0.9 %.