Annual Weather Data

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Bismarck, North Dakota, USA

Updated: 13-May-2026 5:24pm

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	Jan	Feb	Mar	Apr	May
ThuSunSunWedFriMonWedSatTueThuSunTue 1	18.6	37.0	22.9	30.1	62.7
FriMonMonThuSatTueThuSunWedFriMonWed 2	18.7	20.6	40.6	31.9	70.6
SatTueTueFriSunWedFriMonThuSatTueThu 3	22.3	35.4	46.6	30.6	73.7
SunWedWedSatMonThuSatTueFriSunWedFri 4	30.2	40.0	56.5	40.7	53.1
MonThuThuSunTueFriSunWedSatMonThuSat 5	40.1	54.3	29.9	43.0	43.5
TueFriFriMonWedSatMonThuSunTueFriSun 6	41.7	38.5	32.0	32.0	51.5
WedSatSatTueThuSunTueFriMonWedSatMon 7	45.6	40.8	54.4	45.6	62.3
ThuSunSunWedFriMonWedSatTueThuSunTue 8	35.7	49.3	68.0	42.0	70.1
FriMonMonThuSatTueThuSunWedFriMonWed 9	30.0	45.4	36.9	42.6	59.4
SatTueTueFriSunWedFriMonThuSatTueThu 10	23.4	43.8	33.2	59.1	64.1
SunWedWedSatMonThuSatTueFriSunWedFri 11	44.9	48.1	40.8	60.4	81.1
MonThuThuSunTueFriSunWedSatMonThuSat 12	45.5	48.5	50.9	74.1	71.5
TueFriFriMonWedSatMonThuSunTueFriSun 13	43.4	54.5	30.4	43.4
WedSatSatTueThuSunTueFriMonWedSatMon 14	29.3	49.4	28.4	61.6
ThuSunSunWedFriMonWedSatTueThuSunTue 15	40.2	55.0	16.3	69.7
FriMonMonThuSatTueThuSunWedFriMonWed 16	27.6	51.4	24.0	62.7
SatTueTueFriSunWedFriMonThuSatTueThu 17	11.0	43.0	45.2	29.5
SunWedWedSatMonThuSatTueFriSunWedFri 18	24.8	32.4	62.5	44.8
MonThuThuSunTueFriSunWedSatMonThuSat 19	7.6	4.7	74.4	47.1
TueFriFriMonWedSatMonThuSunTueFriSun 20	18.2	6.1	66.4	77.4
WedSatSatTueThuSunTueFriMonWedSatMon 21	24.0	4.7	63.0	77.2
ThuSunSunWedFriMonWedSatTueThuSunTue 22	6.8	11.2	36.9	85.3
FriMonMonThuSatTueThuSunWedFriMonWed 23	-11.1	31.6	59.8	73.6
SatTueTueFriSunWedFriMonThuSatTueThu 24	1.9	37.2	51.3	50.5
SunWedWedSatMonThuSatTueFriSunWedFri 25	-5.6	36.2	71.5	47.1
MonThuThuSunTueFriSunWedSatMonThuSat 26	16.7	48.3	44.5	57.1
TueFriFriMonWedSatMonThuSunTueFriSun 27	10.7	38.3	41.2	48.9
WedSatSatTueThuSunTueFriMonWedSatMon 28	16.8	15.6	66.5	50.0
ThuSunWedFriMonWedSatTueThuSunTue 29	19.7		65.5	55.4
FriMonThuSatTueThuSunWedFriMonWed 30	7.5		52.9	51.0
SatTueSunFriMonSatThu 31	37.3		39.7
Avg:	23.3	36.5	46.9	52.1	* 63.6
Hi:	45.6	55.0	74.4	85.3	* 81.1
Lo:	-11.1	4.7	16.3	29.5	* 43.5
Note:	*Incomplete dataset.

Avg	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2026	23.3	36.5	46.9	52.1	* 63.6
2025	21.4	17.9	47.7	56.4	69.2	75.8	82.9	80.2	75.6	59.7	42.5	26.3
2024	21.2	37.6	36.9	56.2	67.0	75.2	83.8	79.0	81.1	65.1	38.9	29.8
2023	22.2	27.6	25.4	47.1	74.2	81.0	80.9	80.1	74.2	54.3	42.4	37.4
2022	23.2	26.4	41.0	43.8	65.1	78.2	83.7	84.2	75.8	60.2	31.9	15.5
2021	31.4	18.2	51.1	55.4	67.6	86.0	89.7	85.4	78.1	60.2	45.3	24.8
2020	22.6	31.3	44.1	52.1	65.6	81.6	84.5	85.4	71.6	47.9	47.7	34.9
2019	20.2	6.8	31.2	53.4	61.5	76.4	82.1	77.3	69.3	47.1	36.4	26.3
2018	23.9	19.0	34.4	46.5	74.9	81.1	84.2	84.1	67.5	51.8	31.7	31.8
2017	19.6	30.6	39.0	56.5	70.2	79.9	89.1	78.3	72.0	59.6	40.2	27.2
2016	23.9	36.9	* 51.6	54.9	* 69.9	79.2	* 82.4	81.6	70.8	58.5	51.5	18.9
2015	* 26.0	20.5	* 49.2	57.5	64.3	* 76.4	82.0	83.5	* 78.0	59.9	43.6	* 27.4
2014	23.4	17.8	* 34.7	51.5	* 64.5	71.9	79.0	* 77.0	70.5	* 58.6	28.8	27.2
2013	* 22.1	28.9	30.2	* 43.6	* 65.7	74.2	81.3	* 82.7	74.1	50.3	* 36.2	15.0
2012	* 33.2	32.7	56.5	* 58.8	67.0	78.2	* 87.7	80.5	74.7	* 51.8	* 36.8	22.2
2011	* 15.0	20.3	* 27.4	47.3	* 61.3	* 72.4	82.3	* 79.1	70.5	* 57.9	* 42.2	33.0
2010	17.1	* 18.1	39.8	59.4	* 64.7	74.0	81.2	82.1	65.5	* 58.3	36.5	16.9
2009	16.9	20.6	29.2	49.9	66.6	* 72.0	* 76.5	77.6	* 76.6	44.5	50.2	* 15.3
2008	23.8	25.4	41.7	54.9	64.7	73.3	83.3	82.4	69.1	56.4	38.4	16.6
2007	28.4	18.4	47.4	53.4	* 53.4	78.4	87.9	78.9	72.5	57.8	41.6	26.6
2006	34.7	29.0	40.6	63.1	69.8	79.1	91.0	84.3	68.0	51.7	41.6	35.0
2005	19.5	35.7	42.9	59.7	63.3	77.1	85.1	80.6	75.4	58.6	41.9	27.9
2004			* 50.8	58.2	62.6	72.0	81.3	75.7	72.2	57.0	47.1	31.2
Avg	* 23.3	* 25.3	* 40.8	* 53.5	* 65.9	* 77.0	* 83.7	* 80.9	* 72.9	* 55.8	* 40.6	* 25.8

	Winter			Spring			Summer			Autumn
	Dec	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov
2026Hi	46.0	45.6	55.0	74.4	85.3	* 81.1
Lo	0.4	-11.1	4.7	16.3	29.5	* 43.5
Avg	26.3	23.3	36.5	46.9	52.1	* 63.6
Avg	28.5			* 51.8
2025Hi	48.6	45.3	54.9	64.7	75.2	94.6	87.9	97.2	90.2	91.1	85.0	70.8
Lo	2.0	-9.7	-11.3	31.7	32.6	42.5	63.0	66.7	69.3	59.2	38.9	10.5
Avg	29.8	21.4	17.9	47.7	56.4	69.2	75.8	82.9	80.2	75.6	59.7	42.5
Avg	23.2			57.8			79.7			59.2
2024Hi	63.9	55.2	60.9	64.2	79.0	84.1	87.7	94.8	95.6	94.5	85.7	56.9
Lo	25.6	-15.1	15.7	18.1	33.8	52.3	55.5	71.5	65.9	66.6	45.5	7.5
Avg	37.4	21.2	37.6	36.9	56.2	67.0	75.2	83.8	79.0	81.1	65.1	38.9
Avg	32.0			53.3			79.4			61.8
2023Hi	38.1	38.9	47.7	36.9	70.5	88.7	92.9	98.4	92.9	96.0	85.6	59.4
Lo	-13.8	0.8	-7.0	10.4	23.1	53.7	60.4	60.5	59.6	61.3	20.6	26.1
Avg	15.5	22.2	27.6	25.4	47.1	74.2	81.0	80.9	80.1	74.2	54.3	42.4
Avg	21.6			48.9			80.7			56.9
2022Hi	63.5	41.2	51.1	64.4	61.7	78.3	96.8	97.1	97.8	97.6	79.2	75.4
Lo	-9.3	-15.8	-4.8	10.7	21.6	44.4	60.7	75.0	69.9	61.2	41.9	5.8
Avg	24.8	23.2	26.4	41.0	43.8	65.1	78.2	83.7	84.2	75.8	60.2	31.9
Avg	24.7			50.0			82.1			56.0
	Dec	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov
2021Hi	54.9	49.9	51.1	67.7	78.5	84.7	102.7	102.4	100.7	96.2	88.9	65.6
Lo	13.8	3.5	-14.0	26.2	27.9	46.6	68.8	68.1	63.4	63.1	39.2	25.4
Avg	34.9	31.4	18.2	51.1	55.4	67.6	86.0	89.7	85.4	78.1	60.2	45.3
Avg	28.5			58.1			87.0			61.2
2020Hi	42.8	43.3	48.8	64.9	75.8	82.6	94.7	95.4	98.4	90.0	74.1	76.5
Lo	4.5	-7.2	5.8	22.6	16.8	47.3	67.4	73.6	73.3	52.5	23.0	26.9
Avg	26.3	22.6	31.3	44.1	52.1	65.6	81.6	84.5	85.4	71.6	47.9	47.7
Avg	26.6			54.0			83.9			55.7
2019Hi	50.4	46.0	41.1	51.6	77.5	83.3	89.2	90.0	91.8	87.1	76.0	55.3
Lo	8.0	-9.6	-8.2	0.3	31.6	44.3	60.7	73.0	65.7	48.4	25.0	5.9
Avg	31.8	20.2	6.8	31.2	53.4	61.5	76.4	82.1	77.3	69.3	47.1	36.4
Avg	20.0			48.6			78.6			50.9
2018Hi	51.7	48.1	42.4	52.3	82.6	93.0	91.9	95.8	102.7	85.2	71.4	55.8
Lo	-11.0	-6.2	2.2	15.7	19.2	48.3	68.4	71.7	58.5	42.5	31.6	16.0
Avg	27.2	23.9	19.0	34.4	46.5	74.9	81.1	84.2	84.1	67.5	51.8	31.7
Avg	23.5			52.0			83.1			50.3
2017Hi	36.6	40.7	54.7	63.2	74.8	87.8	98.0	99.7	88.7	94.1	78.8	70.0
Lo	-5.0	-2.6	3.8	9.2	35.4	58.7	63.1	72.8	68.1	50.8	35.1	16.7
Avg	18.9	19.6	30.6	39.0	56.5	70.2	79.9	89.1	78.3	72.0	59.6	40.2
Avg	22.7			55.2			82.5			57.3
	Dec	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov
2016Hi	* 59.4	45.0	66.4	* 73.1	71.4	* 85.9	92.2	* 96.3	96.0	86.9	75.5	74.3
Lo	* 4.6	-1.4	14.3	* 29.5	38.2	* 48.1	64.1	* 69.6	60.1	57.8	41.2	28.1
Avg	* 27.4	23.9	36.9	* 51.6	54.9	* 69.9	79.2	* 82.4	81.6	70.8	58.5	51.5
Avg	* 29.3			* 60.3			* 81.1			60.2
2015Hi	44.1	* 46.9	46.8	* 73.3	79.7	81.8	* 89.1	92.1	101.4	* 98.5	87.1	66.0
Lo	-0.9	* -4.8	1.0	* 18.4	38.8	41.1	* 57.9	70.5	66.7	* 63.3	37.2	18.8
Avg	27.2	* 26.0	20.5	* 49.2	57.5	64.3	* 76.4	82.0	83.5	* 78.0	59.9	43.6
Avg	* 24.7			* 57.1			* 80.7			* 59.9
2014Hi	42.2	40.4	42.6	* 62.1	74.6	* 87.4	85.2	93.6	* 87.5	88.8	* 78.5	60.2
Lo	-9.3	-10.0	-1.1	* -9.5	28.4	* 42.0	57.6	65.6	* 56.7	48.9	* 38.3	7.9
Avg	15.0	23.4	17.8	* 34.7	51.5	* 64.5	71.9	79.0	* 77.0	70.5	* 58.6	28.8
Avg	18.8			* 50.4			* 76.0			* 52.4
2013Hi	48.9	* 40.5	43.0	57.3	* 77.3	* 87.6	85.6	90.9	* 99.7	91.9	69.1	* 53.5
Lo	2.2	* -9.3	2.3	15.4	* 28.0	* 48.2	52.6	70.8	* 73.7	54.6	31.6	* 10.0
Avg	22.2	* 22.1	28.9	30.2	* 43.6	* 65.7	74.2	81.3	* 82.7	74.1	50.3	* 36.2
Avg	* 24.3			* 46.3			* 79.3			* 54.5
2012Hi	52.5	* 59.0	50.7	78.9	* 87.7	87.0	91.0	* 100.6	97.9	96.8	* 77.8	* 53.8
Lo	10.2	* 4.9	9.9	24.3	* 37.7	50.0	61.9	* 70.2	65.1	57.2	* 30.0	* 15.2
Avg	33.0	* 33.2	32.7	56.5	* 58.8	67.0	78.2	* 87.7	80.5	74.7	* 51.8	* 36.8
Avg	* 33.0			* 60.9			* 82.0			* 54.8
	Dec	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov
2011Hi	37.1	* 36.7	47.3	* 43.7	69.8	* 74.4	* 87.9	95.0	* 92.9	85.7	* 83.9	* 57.3
Lo	0.4	* -5.4	-6.7	* 4.7	30.5	* 42.6	* 58.8	71.4	* 68.4	50.0	* 45.4	* 14.0
Avg	16.9	* 15.0	20.3	* 27.4	47.3	* 61.3	* 72.4	82.3	* 79.1	70.5	* 57.9	* 42.2
Avg	* 17.5			* 45.6			* 78.2			* 57.6
2010Hi	* 34.2	44.2	* 32.0	71.8	76.4	* 87.1	92.6	93.4	101.5	82.3	* 79.3	68.7
Lo	* -5.0	-12.4	* 6.0	25.2	36.6	* 41.3	61.4	68.5	68.7	46.2	* 31.3	6.9
Avg	* 15.3	17.1	* 18.1	39.8	59.4	* 64.7	74.0	81.2	82.1	65.5	* 58.3	36.5
Avg	* 16.8			* 54.1			79.2			* 53.4
2009Hi	40.1	40.9	36.9	50.2	75.3	83.2	* 87.0	* 92.5	95.9	* 87.8	77.0	70.7
Lo	-12.2	-9.3	0.1	-2.8	29.7	47.9	* 44.9	* 65.0	66.3	* 58.7	30.1	33.0
Avg	16.6	16.9	20.6	29.2	49.9	66.6	* 72.0	* 76.5	77.6	* 76.6	44.5	50.2
Avg	18.0			48.5			* 75.5			* 56.1
2008Hi	45.4	48.5	43.6	62.3	80.9	80.1	85.5	92.9	96.3	89.7	75.3	66.8
Lo	10.5	-6.3	-3.1	14.1	38.0	48.6	53.8	69.8	65.5	54.7	40.6	16.9
Avg	26.6	23.8	25.4	41.7	54.9	64.7	73.3	83.3	82.4	69.1	56.4	38.4
Avg	25.3			53.8			79.7			54.7
2007Hi	51.4	47.0	47.3	79.2	84.0	* 84.0	89.7	103.6	93.4	96.8	76.0	64.8
Lo	8.1	-0.8	-0.4	18.6	23.2	* 23.2	59.9	70.1	61.2	53.2	43.8	11.6
Avg	35.0	28.4	18.4	47.4	53.4	* 53.4	78.4	87.9	78.9	72.5	57.8	41.6
Avg	27.6			* 51.4			81.8			57.3
2006Hi	53.3	45.2	45.2	63.4	78.6	91.8	99.2	99.9	97.3	88.6	83.6	73.9
Lo	2.4	22.9	-2.8	25.0	47.3	42.3	53.6	78.5	71.8	47.6	28.5	4.7
Avg	27.9	34.7	29.0	40.6	63.1	69.8	79.1	91.0	84.3	68.0	51.7	41.6
Avg	30.6			57.8			84.9			53.7
2005Hi	59.6	45.5	57.2	68.9	79.8	83.8	90.7	99.7	95.4	94.3	90.5	68.3
Lo	-3.5	-6.3	9.0	25.7	36.5	40.8	64.5	67.1	66.8	55.6	37.3	17.8
Avg	31.2	19.5	35.7	42.9	59.7	63.3	77.1	85.1	80.6	75.4	58.6	41.9
Avg	28.6			55.2			81.0			58.6
2004Hi				* 60.7	83.0	80.7	89.3	99.9	90.7	95.9	82.4	64.0
Lo				* 44.1	35.8	35.9	53.3	59.2	58.3	50.4	38.9	25.6
Avg				* 50.8	58.2	62.6	72.0	81.3	75.7	72.2	57.0	47.1
Avg				* 59.7			76.4			58.7
Note:	*Incomplete dataset.