Nagano (Nagano): temperature and climate normals

Latest17.3 °COct 9, 2026 20:10 JST

24 h max / min25.0 °C / 9.8 °C

Annual mean (normal)12.3 °Crank 517 of 903

Annual precipitation (normal)965.1mmrank 854

Altitude418 m

Last 24 hours

Mean maxMeanMean min

Month	Mean	Max	Min	≥30°C	Min<0°C	Precip.	Sun	Snow
Jan	-0.4 °C	3.8 °C	-3.9 °C	0.0days	28.8days	54.6mm	128.4h	26 cm
Feb	0.4 °C	5.3 °C	-3.7 °C	0.0days	25.4days	49.1mm	140.2h	23 cm
Mar	4.3 °C	10.3 °C	-0.5 °C	0.0days	18.4days	60.1mm	173.3h	8 cm
Apr	10.6 °C	17.4 °C	4.9 °C	0.1days	3.1days	56.9mm	199.4h	1 cm
May	16.4 °C	23.2 °C	10.9 °C	1.4days	0.0days	69.3mm	214.8h	0 cm
Jun	20.4 °C	26.1 °C	16.1 °C	3.6days	0.0days	106.1mm	167.4h	0 cm
Jul	24.3 °C	29.7 °C	20.5 °C	15.3days	0.0days	137.7mm	168.8h	0 cm
Aug	25.4 °C	31.1 °C	21.5 °C	21.1days	0.0days	111.8mm	201.1h	0 cm
Sep	21.0 °C	26.2 °C	17.2 °C	5.9days	0.0days	125.5mm	151.2h	0 cm
Oct	14.4 °C	19.7 °C	10.3 °C	0.2days	0.0days	100.3mm	152.1h	0 cm
Nov	7.9 °C	13.4 °C	3.4 °C	0.0days	4.6days	44.4mm	142.3h	1 cm
Dec	2.3 °C	6.9 °C	-1.5 °C	0.0days	22.4days	49.4mm	131.1h	16 cm
Year	12.3 °C	17.8 °C	7.9 °C	47.6days	102.6days	965.1mm	1,969.9h	33 cm

For reference: latest 17.3 °C; the Oct mean normal is 14.4 °C (one observation vs a monthly mean).

Normals: JMA 2020 normals (1991–2020 averages). Latest values are observations fetched once a day, not real time.