Iwamizawa (Hokkaido): temperature and climate normals

Latest15.4 °COct 9, 2026 20:10 JST

24 h max / min22.3 °C / 9.0 °C

Annual mean (normal)7.9 °Crank 748 of 903

Annual precipitation (normal)1,248.5mmrank 686

Altitude42 m

Last 24 hours

Mean maxMeanMean min

Month	Mean	Max	Min	≥30°C	Min<0°C	Precip.	Sun	Snow
Jan	-5.3 °C	-1.9 °C	-9.2 °C	0.0days	30.9days	119.4mm	90.2h	101 cm
Feb	-4.6 °C	-0.9 °C	-8.9 °C	0.0days	28.0days	85.5mm	111.3h	118 cm
Mar	-0.4 °C	3.5 °C	-4.5 °C	0.0days	28.1days	59.4mm	161.9h	99 cm
Apr	6.1 °C	11.2 °C	1.3 °C	0.0days	10.4days	52.7mm	176.6h	32 cm
May	12.1 °C	17.7 °C	7.1 °C	0.1days	0.3days	83.9mm	196.5h	0 cm
Jun	16.3 °C	21.7 °C	12.0 °C	0.3days	0.0days	69.5mm	173.6h	0 cm
Jul	20.2 °C	25.1 °C	16.6 °C	2.3days	0.0days	111.5mm	156.2h	0 cm
Aug	21.3 °C	26.1 °C	17.6 °C	3.8days	0.0days	161.1mm	158.8h	0 cm
Sep	17.4 °C	22.4 °C	12.9 °C	0.5days	0.0days	142.2mm	161.9h	0 cm
Oct	10.8 °C	15.7 °C	6.2 °C	0.0days	0.5days	110.4mm	138.5h	1 cm
Nov	3.9 °C	7.6 °C	0.2 °C	0.0days	14.8days	118.8mm	84.7h	29 cm
Dec	-2.6 °C	0.5 °C	-6.0 °C	0.0days	29.4days	144.5mm	69.0h	74 cm
Year	7.9 °C	12.4 °C	3.8 °C	7.0days	142.5days	1,248.5mm	1,679.1h	120 cm

For reference: latest 15.4 °C; the Oct mean normal is 10.8 °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.