Climate Hospital Heliport 2020-2024

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

Calculated from historical METAR data of Náměšť Air Base (LKNA) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	46.9	68	42	50	51	33
February	61.7	56	58	86	47	75
March	77.8	72	87	91	73	88
April	81.0		67	77	76	99
May	86.1		84	91	88	86
June	90.5		90	94	94	77
July	93.4		96	91	90	91
August	89.9		84	81	88	85
September	83.2		91	77	88	83
October	69.1		78	60	80	56
November	39.4		57	37	31	32
December	38.6		40	27	34	24
Average	74.2	65.6	76.0	76.2	74.1	73.5

10th best VFR conditions of Czechia

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met: visibility of 8 km or more and a ceiling of 3,000 ft or more. Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	67.5	81	68	75	67	47
February	82.6	79	89	98	62	97
March	92.8	89	96	96	91	95
April	93.6		85	94	93	99
May	96.6		97	98	98	96
June	97.3		98	98	97	94
July	98.1		100	97	97	97
August	96.3		94	92	97	95
September	92.9		97	93	97	93
October	82.6		88	70	92	77
November	56.8		78	50	60	43
December	59.4		61	46	59	33
Average	87.1	83.6	89.3	87.6	87.1	84.4

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met: visibility of 5 km or more and a ceiling of 1,000 ft or more. Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	1.2	2	4	3	1	1
February	4.6	9	4	6	3	7
March	8.7	11	9	9	7	9
April	12.9		10	11	10	16
May	17.5		17	20	15	16
June	23.4		22	24	24	21
July	24.8		27	25	24	24
August	24.5		24	25	21	24
September	19.0		23	17	20	19
October	13.9		17	14	13	12
November	6.5		7	7	6	6
December	2.5		4	-1	2	3
Average	12.6	7.4	14.0	13.7	12.2	13.0

10th highest temperature of Czechia

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	-4.7	-3	0	-2	-3	-3
February	-2.6	3	-2	0	-4	1
March	0.6	3	1	-1	-1	1
April	3.8		3	2	1	4
May	7.9		8	10	6	6
June	13.2		12	14	14	12
July	14.0		15	14	14	13
August	14.2		14	15	13	15
September	10.2		13	9	11	11
October	6.3		8	7	4	6
November	2.0		2	2	2	2
December	-2.6		0	-3	-2	0
Average	4.9	1.1	6.2	5.8	4.6	5.5

7th lowest temperature of Czechia

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	22.7	16	24	27	29	16
February	12.8	17	13	13	19	13
March	9.9	9	14	5	13	8
April	11.1		23	12	13	3
May	9.7		11	11	10	11
June	6.3		5	6	3	19
July	5.9		4	8	2	11
August	8.0		17	12	10	8
September	9.1		1	13	4	11
October	11.1		10	13	4	17
November	20.1		21	23	17	19
December	19.5		26	34	14	23
Average	11.4	13.4	13.0	13.0	10.3	12.7

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	2024	2023	2022	2021	2020
January	8.8	10	8	11	7	6
February	9.5	9	10	14	7	12
March	9.3	10	10	9	8	10
April	9.3		8	9	10	8
May	8.6		8	7	10	9
June	7.8		7	8	6	9
July	7.8		8	8	7	7
August	7.2		8	7	7	7
September	7.8		8	8	7	8
October	8.8		9	7	9	9
November	8.0		9	6	8	6
December	9.0		8	9	8	10
Average	8.6	9.7	8.4	8.3	8.0	8.2

10th highest wind speed of Czechia

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	288°	275°	282°	272°	243°
February	282°	283°	274°	340°	262°
March	135°	261°	067°	295°	329°
April		341°	313°	309°	336°
May		042°	286°	264°	318°
June		351°	326°	355°	318°
July		283°	309°	319°	297°
August		244°	359°	281°	342°
September		108°	290°	308°	329°
October		265°	168°	135°	262°
November		281°	138°	211°	176°
December		281°	063°	289°	135°

Prevailing wind direction

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