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Post by FrozenI69 on Oct 29, 2021 11:34:58 GMT -5
What is the average time between your first freeze and first accumulating snow (0.1").
For me it's 22 days. Oct 17th for first freeze to Nov 9th for first 0.1". Close to 1 month.
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Post by alex992 on Oct 29, 2021 12:38:51 GMT -5
Average first freeze: September 26
Average first 0.1": November 2
Time between: 37 days
On the other side (spring)
Average last 0.1": April 11
Average last freeze: May 9
Time between: 28 days
Interesting how it's less time during spring than fall.
Also, odd that the first 0.1" on average is November 2nd when October averages 0.8" of snow. If you include last year's October (which got 7.8") the average is 1.0". Looking at 1991-2020 data, 9/30 Octobers (30%) got zero snow, the rest got a trace or more, seven got an inch or more, four got three inches or more, and two got six inches or more. I guess a few snowy Octobers skew the average a bit.
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Post by Steelernation on Oct 29, 2021 16:21:59 GMT -5
Average first freeze: October 5th
Average first snow: October 24th
Difference: 19 days
Average last freeze: May 3rd
Average last snow: April 26th
Difference: 7 days
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Post by firebird1988 on Oct 29, 2021 17:07:47 GMT -5
N/A for both Phoenix, AZ and Riverside, CA
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Post by alex992 on Oct 29, 2021 18:17:23 GMT -5
What is the average time between your first freeze and first accumulating snow (0.1"). For me it's 22 days. Oct 17th for first freeze to Nov 9th for first 0.1". Close to 1 month. I see November 19th for the average first 0.1" in Detroit, not November 9th.  |
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Post by Metsfan257 on Oct 29, 2021 18:44:40 GMT -5
For a standard 1991-2020 PoR @ LGA and 1999-2020 (the full PoR) @ Farmingdale:
LGA first freeze Nov 26, first snow Dec 11 so about 2 weeks between. For Farmingdale its first freeze averages Nov 8, but it doesn’t have snowfall data available. But Farmingdale’s first snow is probably slightly later than LGA’s due to being further east/more ocean influence. UHI doesn’t affect whether or how much snow will fall, but it does give LGA much less time between first freeze and snow as opposed to FRG.
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Post by FrozenI69 on Oct 29, 2021 20:45:42 GMT -5
What is the average time between your first freeze and first accumulating snow (0.1"). For me it's 22 days. Oct 17th for first freeze to Nov 9th for first 0.1". Close to 1 month. I see November 19th for the average first 0.1" in Detroit, not November 9th. I get snow a week before downtown Detroit. |
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Post by alex992 on Oct 29, 2021 21:14:11 GMT -5
I see November 19th for the average first 0.1" in Detroit, not November 9th. I get snow a week before downtown Detroit. Source? What station do you use? |
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Post by srfoskey on Oct 29, 2021 21:16:19 GMT -5
For OKC 1991-2020
First freeze: Nov 4
First snow: Dec 14
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Post by jgtheone on Oct 29, 2021 21:48:47 GMT -5
about 30 years
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Post by FrozenI69 on Oct 30, 2021 9:48:24 GMT -5
I get snow a week before downtown Detroit. Source? What station do you use? Selfridge AFB has a station, and that one has an earlier first snow date than Detroit city airport. |
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Post by Milwaukee Mass Murderer on Nov 16, 2021 22:10:40 GMT -5
For Milwaukee 1991-2020 First freeze October 22 / First 0.1" snow Nov 15 (24 days) Last 0.1" snow Apr 11 / Last freeze Apr 22 (11 days)
Outside the city the freeze dates will be earlier and later. The 11 day gap is so small because the UHI means it rarely sees a freeze past late April.
For Madison: The airport has less UHI than Milwaukee's. Oct 7 / Nov 11 (35 days) Apr 10/ May 3 (23 days) |
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Post by alex992 on Nov 17, 2021 6:42:24 GMT -5
Source? What station do you use? Selfridge AFB has a station, and that one has an earlier first snow date than Detroit city airport. Lol, Selfridge AFB shows November 24th as the first snow. Again, what source were you using? Are you just making shit up? |
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