Weather in Montana

Calculated from weather data of Billings Logan International Airport (KBIL) between 2021 and 2025.

Maximum temperatures (°F)

Month	Average	2025	2024	2023	2022	2021
January	36.0	33.0	34.0	38.0	40.0	42.0
February	33.0	24.0	44.0	38.0	39.0	25.0
March	47.0	54.0	47.0	37.0	51.0	53.0
April	57.0		62.0	58.0	51.0	57.0
May	68.0	71.0	65.0	73.0	65.0	67.0
June	79.0	78.0	80.0	74.0	77.0	89.0
July	90.0		90.0	87.0	91.0	95.0
August	87.0		86.0	87.0	90.0	85.0
September	77.0		82.0	78.0	82.0	80.0
October	60.0		69.0	57.0	63.0	63.0
November	46.0		45.0	52.0	37.0	54.0
December	40.0		47.0	46.0	28.0	36.0
Average	59.0	52.0	63.0	61.0	61.0	62.0

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°F)

Month	Average	2025	2024	2023	2022	2021
January	20.0	19	16	23	20	26
February	16.0	10	27	21	18	11
March	28.0	34	28	22	30	30
April	35.0		38	35	30	35
May	46.0	47	44	49	44	43
June	55.0	54	53	55	53	58
July	62.0		62	60	62	65
August	60.0		58	62	63	59
September	52.0		54	53	54	52
October	39.0		43	39	42	42
November	29.0		28	32	22	35
December	24.0		30	29	11	19
Average	38.0	33.0	40.0	40.0	38.0	40.0

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2025	2024	2023	2022	2021
86 °F or warmer	5	54	41	58	71
77 °F or warmer	29	108	97	95	112
68 °F or warmer	47	156	148	141	155
32 °F or colder	62	109	129	118	113

Precipitation (%)

Month	Average	2025	2024	2023	2022	2021
January	8.6	17	10	13	9	5
February	18.3	28	16	18	15	18
March	11.7	10	19	18	16	5
April	12.5		9	12	14	10
May	8.8	7	13	6	12	6
June	5.2	3	3	12	7	1
July	1.0		2	1	1	1
August	2.6		2	3	3	7
September	4.8		3	3	4	0
October	9.0		1	20	5	9
November	7.9		8	4	16	3
December	8.4		8	6	9	10
Average	8.3	12.1	7.7	9.5	8.9	5.9

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	2025	2024	2023	2022	2021
January	13.8	15	13	13	15	13
February	12.5	12	11	14	15	12
March	10.4	12	9	9	11	11
April	11.7		13	11	13	11
May	9.9	9	12	8	11	10
June	9.5	9	11	8	10	9
July	8.3		9	8	8	9
August	8.9		9	10	10	9
September	9.7		10	9	9	10
October	11.4		10	10	11	11
November	12.7		10	12	13	14
December	12.8		12	14	11	11
Average	10.8	11.0	10.6	10.2	11.3	10.6

Average wind speed

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

Prevailing wind direction

Month	2025	2024	2023	2022	2021
January	W	SW	W	W	W
February	W	W	W	W	W
March	W	N	N	W	W
April		NW	W	NW	W
May	NW	W	NE	NW	N
June	N	NW	N	W	NW
July		SW	SW	W	S
August		NE	W	W	W
September		W	SW	W	W
October		SW	W	W	W
November		W	SW	W	W
December		W	SW	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 90 °F over the past years.

What is the coldest month in Montana?

The coldest month is February with an average daytime temperature of 33 °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 18.3 %.

Which month is the driest in Montana?

The least rainfall and snow can be expected in July. The probability is about 1.0 %.