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Post by Steelernation on Apr 12, 2024 11:16:27 GMT -5
•Average coldest month high 50-60 f
•Average coldest month low >25 f
•Average coldest month high 43-49 f IF:
-Average low >34 f and November/March combined average high >55 f
OR
-Average low >25 f and November/March combined average high >58 f and no more than 2 months with sub-50 f average highs
->1” precipitation
-Record high >70
•Average hottest month high 75-85 f
•Average highest monthly dew point <65 f
•Wettest month April-August
•Driest month September-March
•>8 precipitation days/month April-August
•>5 precipitation days/month December-March
•<15 precipitation days/month September-April
•85-135 annual precipitation days
•>40 thunderstorms per year
• accumulating snow most years
Flexible if one or two just slightly misses
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Post by CRISPR on Apr 13, 2024 1:04:11 GMT -5
I have very strict criteria, so not many places have an A climate IMO: - Record highs in each month between 24C and 44C
- Average summer highs between 21C and 32C
- Average winter highs between 13C and 24C
- Average summer lows between 14C and 20C
- Average winter lows between 6C and 12C
- Record lows in each month between 0C and 12C
- Rainfall in each month between 30 to 200 mm
- Annual rainfall between 750 to 1500 mm
- Between 3 to 12 rainfall days in each month (1 mm)
- At least 30 thunderstorms annually
- Monthly mean dew points between 5C and 18C
- Between 2500 to 3500 annual sunshine hours
- All months have at least 50% possible sunshine
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Post by Benfxmth on Aug 20, 2024 8:03:48 GMT -5
- Warmest month average high between 90°F (32°C) and 110°F (43°C) in the warmest month
- Warmest month average low between 72°F (22°C) and 82°F (28°C) in the warmest month
- At least 45% possible sunshine in all months
- At least 2,400 sunshine hours annually, if applicable
- At least 40 thunder days per year, if applicable
- At least 1" (25 mm) in each warm season month (Apr-Oct, or Oct-Apr for the SH) but also not an extreme wet/dry contrast
- Coldest month average high above 60°F (16°C) and average low above 32°F (0°C), but also a seasonal amplitude of at least 15°F and coldest monthly mean below 75°F (24°C)
For an A+ grade, a climate must meet the aforementioned, and have at least all three summer months (JJA, or DJF for SH) with average highs exceeding 90°F (32°C) and have an all-time record high above 110°F (43°C), warmest month average high between 95°F and 105°F (35-41°C), warmest month average low between 75°F and 80°F (24-27°C) and a coolest month average high of 63-75°F (17-24°C) and an average low of 40-50°F (4-10°C)
Not hard and fast, and climates that just miss 1 or 2 criteria may still get an A or A-
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Post by trolik on Nov 4, 2024 18:27:51 GMT -5
- Warmest month high between 27 - 32c
- Warmest month low between 17 - 23c
- Other summer months should not have highs below 24c and lows below 14c
- Sun should be above 240hrs in the sunniest month
- Coolest month high between 3 - 9c
- Coolest month low between -5 - 0c
- First winter month should not have highs above 10c and lows above 2c
- Last winter month should not have highs above 12c and lows above 4c
- Yearly should be above 10" but nothing too excessive
- Sun should be above 90hrs in the gloomiest month
- 30-60" of rain
- More equal distribution of precipitation
- No med pattern but can allow for transitional season max if it's not too dry in summer
- Driest month receives no less than 1" of rain
- Thunderstorms should occur on 25 or more days a year. No real limit due to the type of climate I've been describing!
- Over 2300hrs of sun a year but can make the odd exception if winter is particularly sunny
- The less seasonal lag the better!
- Extra points:
- Record highs 40c or above in warmest month
- No record lows below -20c ish
- Quick spring warm-up
- Fast autumn cool-down
- Snow peak in first winter month or coolest winter month
- First winter month cooler than last winter month
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