What's your weather currently?

[Ted$8roadFan]

Sunny and 78.

[jakeroot]

So just imagine 100-ish and humid...it's miserable.

I don't have to imagine it—that's just summer in Oklahoma.

Just to be clear, we're talking about 100, and like 80% humidity. I've never known OKC to be that humid before.

[Ted$8roadFan]

Cloudy and 74.

[Scott5114]

I went to pick up some food and it didn't really register as hot to me.

Just to be clear, we're talking about 100, and like 80% humidity. I've never known OKC to be that humid before.

At a certain point, it kind of all sucks—when you reach the point where evaporative cooling stops working, the lack of the body's natural cooling system means it's going to be miserable, whether the humidity is technically 60% or 80% or 100%.

In any event, after 30 years of humid summers, I'm pretty happy with my 5% humidity and my dewpoint below freezing.

[jgb191]

So just imagine 100-ish and humid...it's miserable.

I don't have to imagine it—that's just summer in Oklahoma.

Just to be clear, we're talking about 100, and like 80% humidity. I've never known OKC to be that humid before.

Just to be clear myself, your numbers of 100 degrees and 80% relative humidity would equal a dew point in the 90s resulting in a heat index of almost 160 degrees, which is extremely rare (if not unprecedented) on Earth.  And I believe Japan averages mid-to-upper 80s during the summer (island nations have smaller temperature variation within), so with the highs being around 100 degrees, it seems like they're going through an abnormal period of a heat wave for now (law of averages will bring those temperatures back down again).


For some reason people typically -- and incorrectly -- refer to the RH when they should be looking at the dew point, which actually indicates how much amount of moisture the air is currently holding, the higher the dew point, the more moisture is in the air.  The RH is a measure of how far apart the air temperature and dew point are.  So if the temperature is 100 degrees and the heat index is 115 degrees (normal South Texas conditions during our peak summer by the way), the dew point would be somewhere in the upper 70s which actually means RH is around 45%.

[jakeroot]

So just imagine 100-ish and humid...it's miserable.

I don't have to imagine it—that's just summer in Oklahoma.

Just to be clear, we're talking about 100, and like 80% humidity. I've never known OKC to be that humid before.

Just to be clear myself, your numbers of 100 degrees and 80% relative humidity would equal a dew point in the 90s resulting in a heat index of almost 160 degrees, which is extremely rare (if not unprecedented) on Earth.  And I believe Japan averages mid-to-upper 80s during the summer (island nations have smaller temperature variation within), so with the highs being around 100 degrees, it seems like they're going through an abnormal period of a heat wave for now (law of averages will bring those temperatures back down again).


For some reason people typically -- and incorrectly -- refer to the RH when they should be looking at the dew point, which actually indicates how much amount of moisture the air is currently holding, the higher the dew point, the more moisture is in the air.  The RH is a measure of how far apart the air temperature and dew point are.  So if the temperature is 100 degrees and the heat index is 115 degrees (normal South Texas conditions during our peak summer by the way), the dew point would be somewhere in the upper 70s which actually means RH is around 45%.

I appreciate the analysis! I've never given much thought to the actual science behind the numbers, so I appreciate you helping me put things into perspective. I thought I remember my weather app saying around 80% humidity, but that seems unlikely now.

I did some research. Seems that it hit around 100 degrees, but around 78 F dew point, so around 49-50% relative humidity. This puts the heat index around 118. Definitely still hot.

Regarding Japan, it's quite variable. In Fukuoka (where I was last week), around 90 is the normal average high in summer months, and the same in Okinawa where I am now. Other places mid-to-upper 80s are common. Hokkaido is colder of course.

[Scott5114]

I did some research. Seems that it hit around 100 degrees, but around 78 F dew point, so around 49-50% relative humidity. This puts the heat index around 118. Definitely still hot.

For comparison's sake, the dew point in Norman is currently 72°F, and the high today is forecast to be 99°F.

[jgb191]

I appreciate the analysis! I've never given much thought to the actual science behind the numbers, so I appreciate you helping me put things into perspective. I thought I remember my weather app saying around 80% humidity, but that seems unlikely now.

Glad I could help!  And your weather app might not be wrong at night:  If the nighttime temperature is 80 degrees and the dew point is 75 degrees, the resulting Heat Index would be 84 degrees and your RH would indeed be around 80%.
 

Regarding Japan, it's quite variable. In Fukuoka (where I was last week), around 90 is the normal average high in summer months, and the same in Okinawa where I am now. Other places mid-to-upper 80s are common. Hokkaido is colder of course.

And thanks for the reminder I needed; I guess forgot about the mountains in Japan and how cold it get there too; the island country is a Winter-capable Olympics host.

[jgb191]

Still remaining a few degrees below normal for end of July.

                                    ACTUAL                         AVERAGE
BROWNSVILLE:      96 high; 81 low                  99 high; 81 low
CORPUS CHRISTI:  95 high; 80 low                  98 high; 82 low
LAREDO:               103 high; 77 low                105 high; 80 low
MCALLEN:             100 high; 79 low                102 high; 80 low

Dew Points range in the low 70s to low 80s.
Nighttime Heat Index:  90-100 degrees
Daytime Heat Index: 110-120 degrees

This summer so far has been so mild that average highs in July 2024 were only 93 degrees in Corpus Christi and 98 degrees in Laredo.
Compare that to the average highs in May 2024 which were 94 degrees in Corpus Christi and 100 degrees in Laredo.
An above-average spring turned out to be warmer than a below-average summer.

[Hunty2022]

94 and partly cloudy.

[Ted$8roadFan]

85, hazy, hot and humid.

[7/8]

Cloudy and a very hot 30C (87F), humidex of 39C (102F), with a risk of thunderstorms this evening. Temperatures are expected to fall to the lower/mid 20's next week which will be nice.

[gonealookin]

I'm at a golf tournament in Farmington, Utah.  It's about what one might expect in the Salt Lake/Ogden area at the beginning of August, pretty nice until about 10 a.m., then the heat really starts up and by early afternoon it's over 100°F.  You don't want to be without water for very long.

Roadgeek addendum:  The 5th hole is directly adjacent to I-15, which is under construction through Farmington.  Due to the construction there's not even a soundwall between the freeway and the golf course; it's totally exposed to the roar of traffic.  The "Front Runner" trains go zipping past there too, on the other side of I-15.  This afternoon, something happened on northbound I-15 and the roar of the traffic was replaced by the wailing of the sirens of emergency vehicles trying to navigate around the stopped cars through the construction zone.  Trying to focus on a tee shot a few yards from a freeway:

[epzik8]

Had a one-two punch of storms this afternoon and evening after near triple-digit heat earlier.

[Ted$8roadFan]

74 with clouds and fog.

[7/8]

It's currently a cool (for early August) 18C/65F, overcast, with light rain on-and-off all day.

[Genghixiani]

high of 81, currently 66. Gonna be cloudy.

[1995hoo]

Getting much-needed rain as Debby moves up the East Coast. After several weeks of temperatures mostly in the 90s, the forecast high today is only 81°, but unfortunately the amount of rain means that's coupled with 93% humidity (as I type this, it's 73° with a dew point of 71°!), so it's not really a "windows open" kind of a day. It'd be nice to open the windows and circulate some fresh air, but that's just going to have to wait a few days.

[Hunty2022]

74 and raining as Debby slowly approaches. I'm supposed to be right in the eye when it gets here.

[JayhawkCO]

A glorious high of 71 with clouds today. 20 degrees below average.

[Hunty2022]

74 and raining as Debby slowly approaches. I'm supposed to be right in the eye when it gets here.

The eye moved westward, I'm currently in some part of the storm with a tornado watch and a flood watch. The high only got up to 79 today after plenty of 90+ degree days in a row.

EDIT = The Lightningmaps.org rain radar shows me in the eye of the tropical depression.

[Ted$8roadFan]

72 and cloudy.

[ozarkman417]

Temps have been a good 10 degrees below normal as of late, though it will creep above 90 again on Wednesday.

[bugo]

A hellacious severe warned thunderstorm passed through a few minutes ago. It got really loud and there was a lot of lightning. I'm not aware of any damage.

[jgb191]

After over a month or so of mild/pleasant temperatures (by 5-10 degrees below average), we've climbed back up to normal again (for mid-to-late August).


                                  ACTUAL                        AVERAGE
BROWNSVILLE:    100 high; 83 low                  99 high; 79 low
CORPUS CHRISTI:  99 high; 82 low                  98 high; 81 low
LAREDO:              105 high; 80 low                104 high; 78 low
MCALLEN:            102 high; 81 low                101 high; 80 low

Nighttime Heat Index: upper-80s to near 100 degrees
Daytime Heat Index: mid-110s to as high as 122 degrees