Statistics Empire Weather Station 2019-2023

Climate and trends: average temperature, flight conditions, precipitation, wind speed and direction.

Calculated from historical METAR data of Empire Weather Station (K0CO) between 2019 and 2023.

VFR conditions (%)

Month	Average	2023	2022	2021	2020	2019
January	29.5	0	0	51		49
February	20.3	0	0	25		15
March	19.9	0	0	43		0
April	20.1	0	0	61		0
May	27.0	0	0	64		0
June	51.7		0	87		0
July	82.7	96	46	90		0
August	88.9	88	87	85	97	67
September	87.0		89	87	85	100
October	77.2		76	66	91	100
November	62.9		51	64	74	0
December	42.1		49	36	48	0
Average	48.0	34.7	31.8	65.0	80.2	10.3

2,507th best VFR conditions of United States

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met:

• Visibility: 5 mi or more
• Ceiling: 3,000 ft or more

Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month	Average	2023	2022	2021	2020	2019
January	32.0	0	0	57		52
February	24.5	0	0	31		16
March	22.1	0	0	47		0
April	22.6	0	0	68		0
May	29.6	0	0	71		0
June	53.2		0	91		0
July	84.9	97	49	94		0
August	92.4	92	90	90	99	67
September	89.7		94	90	86	100
October	81.0		80	70	93	100
November	68.4		56	70	79	0
December	44.1		52	36	51	0
Average	50.9	35.7	33.6	69.8	82.9	10.9

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met:

• Visibility: 3⅛ mi or more
• Ceiling: 1,000 ft or more

Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month	Average	2023	2022	2021	2020	2019
January	-9.2	-10	-8	-9		-9
February	-9.0	-9	-10	-11		-9
March	-6.2	-8	-6	-6		-6
April	-2.1	-3	-2	-2		-2
May	2.3	3	3	2		-1
June	10.0		10	11		7
July	12.1	14	12	12		10
August	11.5	12	11	12	14	10
September	8.6		10	10	9	5
October	1.3		1	1	3	0
November	-5.8		-7	-3	-3	-6
December	-8.0		-9	-7	-8	-8
Average	0.6	-2.5	0.5	0.9	2.8	-1.0

2,519th highest temperature of United States

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2023	2022	2021	2020	2019
January	-15.3	-16	-15	-15		-15
February	-16.5	-16	-17	-16		-16
March	-13.6	-15	-12	-13		-12
April	-9.0	-11	-10	-9		-7
May	-4.2	-2	-4	-4		-6
June	2.5		2	4		0
July	5.8	6	5	6		7
August	5.2	4	5	4	6	7
September	2.1		3	2	1	4
October	-5.0		-5	-6	-4	0
November	-11.6		-14	-8	-9	-6
December	-14.3		-16	-12	-15	-10
Average	-6.1	-9.4	-7.6	-6.4	-5.5	-6.0

35th lowest temperature of United States

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2023	2022	2021	2020	2019
January	14.7	0	0	33		17
February	19.1	0	0	57		7
March	12.2	0	0	46		0
April	7.2	0	0	24		0
May	4.3	0	0	14		0
June	1.6		0	4		0
July	3.9	4	4	6		0
August	4.3	5	7	6	0	0
September	1.7		4	2	0	0
October	9.6		15	15	0	0
November	19.0		35	22	0	0
December	25.2		40	10	34	0
Average	8.4	1.5	6.9	18.8	5.7	3.3

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 (knots)

Month	Average	2023	2022	2021	2020	2019
January	19.4	19	19	20		17
February	18.6	19	20	17		18
March	16.5	17	16	15		15
April	17.7	16	21	16		17
May	15.0	11	18	14		16
June	13.5		15	11		14
July	10.2	13	9	8		11
August	10.4	11	7	11	11	13
September	12.1		11	12	13	19
October	15.5		13	14	20	25
November	18.1		17	21	17	0
December	19.2		21	22	16	12
Average	15.5	15.5	15.1	14.6	15.4	16.0

2,519th highest wind speed of United States

Average wind speed

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

Prevailing wind direction

Month	2023	2022	2021	2020	2019
January	307°	317°	308°		307°
February	299°	311°	302°		287°
March	291°	308°	295°		293°
April	299°	289°	290°		295°
May	278°	282°	268°		287°
June		284°	298°		291°
July	298°	312°	330°		307°
August	294°	326°	292°	302°	300°
September		295°	297°	307°	294°
October		304°	294°	299°	289°
November		301°	308°	291°	360°
December		293°	295°	312°	284°

Prevailing wind direction

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