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The figures for the UK sound about right. On rain days here in Buxton it rarely rains more than 2/3 hours a day on average. 240 rain days x 2-3 hrs = 480 - 720 hours.
A lot of the UK's rain, even in winter, is quite showery and brief. Seems a much bigger proportion of rain in PacNW is stratus related drizzle/mist. Simply the number of rain days vs rain quantity tells us little about the nature of the rain. UK gets quite a lot of rain days and not a lot of rain, but still much of that rain falls in a short time, in showers none the less.
I can't find any annual hours of precipitation stats for around here, but I'm guessing 600-800 hours, 12-15 hours per week. Most of the rain seems to fall in short periods, but yesterday (for example) would have had a few spits in every daylight hour, even though the rain gauge didn't collect any- then 11 hours with 46 mm/2 inches. So the day could have had 11 hours or 22 hours, depending on what qualifies as hourly recordable rainfall.
It's just started hosing down now. I'm hoping the heavy rain warning is wrong- this nonsense weather of the last week or two is wearing a bit thin.
Unfortunately BOM doesn't publish or collect annual rainfall hours here. Though I suspect the 'rainfall to hours' ratio here is fairly low (high sunshine hours may be an indicator) there's nothing to back that up. From my own experience its rare we get more than 12 hours of rain on any given day (< 5 days a year) and that most of our rain comes in short bursts of moderate-heavy rain.
I can't find any annual hours of precipitation stats for around here, but I'm guessing 600-800 hours, 12-15 hours per week. Most of the rain seems to fall in short periods, but yesterday (for example) would have had a few spits in every daylight hour, even though the rain gauge didn't collect any- then 11 hours with 46 mm/2 inches. So the day could have had 11 hours or 22 hours, depending on what qualifies as hourly recordable rainfall.
It's just started hosing down now. I'm hoping the heavy rain warning is wrong- this nonsense weather of the last week or two is wearing a bit thin.
February had 117mm/5.5 inches for 29 hours, so far March has had 39 mm/1.6 inches for 11 hours. Any recorded rain within that hour is considered an hour, whether is rains for 1 minute or 60. Feb has the lowest rate of fall, and October has the highest.
Just an old weather book of mine, the averages are only 1951-1960, so a bit out of date.
Does the book give a breakdown of rainy hours by month, or just annual figures?
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