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September 2015 will go down in the record books as one of the warmest Septembers on record across north-central and northeast Wisconsin away from Lake Michigan. Portions of northeast Wisconsin also experienced one of the wettest Septembers on record. Here is a look at how September ranked at Green Bay, Rhinelander and Wausau. Other locations from across north-central and northeast Wisconsin are listed below Wausau.
Green Bay
At Green Bay, the average temperature was 66.3 degrees or 7.1 degrees above normal and was tied for the second warmest September on record. Only 1931 at 67.3 degrees was warmer and tied 1908 at 66.3 degrees. The average September temperature is 59.2 degrees. The rainfall total for the month was 5.85 inches or 2.81 inches above normal, and was the 7th wettest September on record.
| Temperature | Precipitation | |||||
| Rank | Temp | Year(s) | Rank | Precip | Year | |
| 1 | 67.3 | 1931 | 1 | 7.80 | 1965 | |
| 2T | 66.3 | 1908, 2015 | 2 | 7.51 | 1986 | |
| 4T | 66.1 | 1891, 1897 | 3 | 6.74 | 1964 | |
| 6 | 65.8 | 1933 | 4 | 6.31 | 1938 | |
| 7 | 65.6 | 1906 | 5 | 6.24 | 1910 | |
| 6 | 6.11 | 1970 | ||||
| 7 | 5.85 | 2015 | ||||
| 8 | 5.84 | 1931 | ||||
Rhinelander
At Rhinelander, the average temperature was 62.2 degrees or 6.7 degrees above normal and was the 3rd warmest September on record. The average September temperature is 55.5 degrees. Unlike the above normal rainfall at Green Bay, the rainfall total for the month at Rhinelander was 2.76 innches or 1.44 inches below normal.
| Temperature | ||
| Rank | Temp | Year(s) |
| 1 | 64.5 | 1908 |
| 2 | 63.3 | 1998 |
| 3 | 62.2 | 2015 |
| 4 | 62.0 | 1931 |
| 5 | 61.2 | 1948 |
Wausau
At Wausau, the average temperature was 64.9 degrees or 6.4 degrees above normal and was the 4th warmest September on record. The average September temperature is 58.5 degrees. The rainfall total for the month was 5.21 inches or 1.31 inches above normal, and was the 27th wettest September on record.
| Temperature | ||
| Rank | Temp | Year(s) |
| 1 | 65.6 | 1908 |
| 2 | 65.4 | 1931 |
| 3 | 65.0 | 1936 |
| 4 | 64.9 | 2015 |
| 5 | 64.6 | 1998 |
Other Locations Across North-Central and Northeast Wisconsin
Here is a look at the average temperature and September ranking for other locations across north-central and northeast Wisconsin.
| Ave Sep | ||
| Location | Temp | Ranking |
| Antigo | 61.7 | 9th Warmest |
| Appleton | 66.4 | 3rd Warmest |
| Chilton | 66.0 | 4th Warmest |
| Clintonville | 65.4 | Warmest |
| Florence | 62.9 | Warmest |
| Kewaunee | 62.1 | 13th Warmest |
| Manitowoc | MSG | MSG |
| Marshfield | 64.9 | 2nd Warmest |
| Merrill | 63.2 | 4th Warmest |
| New London | 65.5 | 6th Warmest |
| Oconto | 65.2 | 5th Warmest |
| Oshkosh | 67.4 | 4th Warmest |
| Shawano | 66.1 | Warmest |
| Stevens Point | 65.0 | 9th Warmest |
| Sturgeon Bay | MSG | MSG |
| Two Rivers | 61.7 | 12th Warmest |
| Waupaca | 65.9 | Tied 4th Warmest |
| Washington Island | 65.3 | Warmest |
| Wisconsin Rapids ** | 66.3 | 2nd Warmest |
**Note: Airport location.
Note: Incomplete data for Manitowoc and Sturgeon Bay at the time of the publishing of this article. The article will be updated once we receive missing data during the month.
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