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Conditions for the Trial Ground

Climatic Conditions of Nagaoka

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annually Note
Average Temperature
(°C)
1.3 1.2 4.1 10.5 16.0 20.2 23.9 25.6 21.1 15.0 9.2 4.1 12.7 A
Maximum Temperature
(°C)
3.8 3.9 7.9 15.6 20.8 24.3 27.7 29.8 25.1 19.3 13.2 7.2 16.6 B
Minimum Temperature
(°C)
-1.0 -1.2 0.8 5.9 11.6 16.6 20.6 22.1 17.8 11.5 5.8 1.6 9.4 C
Average Wind Speed(m/s) 2.5 2.6 2.4 2.5 2.2 1.8 1.8 1.7 1.6 1.8 2.1 2.6 2.1 D
Precipitation
(mm)
297.9 168.8 140.7 99.5 114.2 125.5 225.3 148.6 175.8 195.3 281.0 335.8 2,308.5 E
Hours of Sunshine
(h)
44.4 60.0 105.0 151.8 152.4 95.5 110.7 162.8 111.1 124.4 91.3 61.8 F
Average Humidity
(%)
87.0 83.3 75.3 70.3 74.3 82.0 83.0 82.0 84.7 84.0 82.7 84.7 G
Maximum Snow Depth
(cm)
79.0 86.0 56.0 - - - - - - - - 40.0 90.0 H
Note
A~F Observed by the Niigata Local Meteorological Observatory in Nagaoka (Niigata Local Meteorological Observatory Homepage, electronic reference room)
G Observed by the Nagaoka Institute of Snow and Ice Studies, the National Research Institute for Earth Science and Disaster Prevention in Nagaoka (provided by the said institute)
H Observed in the Echigo Hillside Park.
A~E Average from 1979 to 2000
F Average from 1987 to 2002
G Average from 1997 to 2002
H Average from 1999 to 2004

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