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Weather: Temp RH and Dew Point Tables

  1. Full Set PDF
  2. Elevation 0-500 feet (0-300 feet in Alaska), 30 in.
  3. Elevation 501-1,900 feet (301-1,700 feet in Alaska), 29 in.
  4. Elevation 1,901-3,900 feet (1,701-3,600 feet in Alaska), 27 in.
  5. Elevation 3,901-6,100 feet (3,601-5,700 feet in Alaska), 25 in.
  6. Elevation 6,101-8,500 feet (5,701-7,900 feet in Alaska), 23 in.
  7. Elevation 8,501-11,000 feet (above 7,900 feet in Alaska), 21 in.

The following tables calculate Dew Point and Relative Humidity based on the observed wet bulb and dry bulb temperatures and the elevation at the site of the observation. These can be calculated automatically using Wildland Fire RH Calculator Apps for iOS and Android available for free.

 

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Full Set PDF

Click here to obtain a full set of tables in PDF form. Another available tool is an online Dew Point calculator.

 

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Elevation 0-500 feet (0-300 feet in Alaska), 30 in.

 

Dry Bulb Temp 41-60

Psychometric Tables Pressure 30 in, DB Temp 41-60

 

Dry Bulb Temp 61-80

Psychometric Tables Pressure 30 In Mercury, DB Temp 61-80

 

Dry Bulb Temp 81-100

Psychometric Table, Pressure 30 in, DB Temp 81-100

 

Dry Bulb Temp 101-119

Psychometric Table, Pressure 30 in, DB Temp 81-100

 

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Elevation 501-1,900 feet (301-1,700 feet in Alaska), 29 in.

 

Dry Bulb Temp 41-60

Psychometric Table, Pressure 29 in, DB Temp 41-60

 

Dry Bulb Temp 61-80

Psychometric Table, Pressure 29 in, DB Temp 61-80

 

Dry Bulb Temp 81-100

Psychometric Table, Pressure 29 in, DB Temp 81-100

 

Dry Bulb Temp 101-119

Psychometric Table, Pressure 29 in, DB Temp 101-119

 

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Elevation 1,901-3,900 feet (1,701-3,600 feet in Alaska), 27 in.

 

Dry Bulb Temp 41-60

Psychometric Table, Pressure 27 in, DB Temp 41-60

 

Dry Bulb Temp 61-80

Psychometric Table, Pressure 27 in, DB Temp 61-80

 

Dry Bulb Temp 81-100

Psychometric Table, Pressure 27 in, DB Temp 81-100

 

Dry Bulb Temp 101-119

Psychometric Table, Pressure 27 in, DB Temp 101-119

 

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Elevation 3,901-6,100 feet (3,601-5,700 feet in Alaska), 25 in.

 

Dry Bulb Temp 41-60

Psychometric Table, Pressure 25 in, DB Temp 41-60

 

Dry Bulb Temp 61-80

Psychometric Table, Pressure 25 in, DB Temp 61-80

 

Dry Bulb Temp 81-100

Psychometric Table, Pressure 25 in, DB Temp 81-100

 

Dry Bulb Temp 101-119

Psychometric Tables Pressure 25 in, DB Temp 101-119

 

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Elevation 6,101-8,500 feet (5,701-7,900 feet in Alaska), 23 in.

 

Dry Bulb Temp 31-50

Psychometric Table, Pressure 23 in, DB Temp 31-50

 

Dry Bulb Temp 51-70

Psychometric Table, Pressure 23 in, DB Temp 51-70

 

Dry Bulb Temp 71-90

Psychometric Table, Pressure 23 in, DB Temp 71-90

 

Dry Bulb Temp 91-110

Psychometric Table, Pressure 23 in, DB Temp 91-109

 

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Elevation 8,501-11,000 feet (above 7,900 feet in Alaska), 21 in.

 

Dry Bulb Temp 31-50

Psychometric Table, Pressure 21 in, DB Temp 31-50

 

Dry Bulb Temp 51-70

Psychometric Table, Pressure 21 in, DB Temp 51-70

 

Dry Bulb Temp 71-90

Psychometric Table, Pressure 21 in, DB Temp 71-90

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NEW! S-219, Firing Operations (Blended) Now Available

Date: Sept 11, 2025
Questions? Please contact:
Fuels Management Committee 

The S-219, Firing Operations (Blended) course is now available on the Wildland Fire Learning Portal. Developed through the Incident Performance and Training Modernization (IPTM) effort, this training supports individuals working towards Firing Boss, Single Resource (FIRB) incident qualifications.

This blended course combines online and instructor-led training to provide students with the knowledge and skills required to perform the duties of the FIRB, as described in the NWCG Incident Position Standards for Firing Boss, Single Resource, PMS 350-105.

Any changes to qualification pathways will take effect with the next update of the NWCG Standards for Wildland Fire Position Qualifications, PMS 310-1, scheduled for January 2026.

References:

S-219, Firing Operations (Blended)

NWCG Firing Boss, Single Resource Position Page

Wildland Fire Learning Portal

NWCG Committees Observe Suicide Prevention Awareness Week: September 7-13, 2025

Date: Sep 5, 2025
Questions? Please contact:
Mental Health Subcommittee

The NWCG Mental Health Subcommittee (MHSC) and Risk Management Committee (RMC) recognize the unique challenges and demands faced by the wildland fire community. The MHSC and RMC know that we are all stronger together and believe in fostering a culture of support, understanding, and resilience.

Suicide Prevention Awareness encourages us to actively connect with and support each other. For more information that could make a difference for yourself or someone else please review the materials and resources provided for the 2025 Suicide Prevention Awareness Week.

References:

2025 Suicide Prevention Awareness Week Materials and Resources

NEW! Incident Performance and Training Modernization Story Map Now Available

Date: Aug 26, 2025
Questions? Please contact:
National Wildfire Coordinating Group

NWCG is excited to announce the launch of the Incident Performance and Training Modernization (IPTM) Story Map, a new interactive resource that showcases how NWCG is transforming wildland fire training and qualifications through a performance-based system.

Since its launch in 2023, IPTM has made major strides in updating how we manage incident positions:

  • 36 incident positions now have new Incident Position Standards and Next Generation Position Task Books available for field use
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The Story Map guides you through the IPTM process, highlights key accomplishments, and outlines what’s ahead. Whether you are a trainer or a trainee, this tool offers valuable insight into the modernization effort shaping the future of wildland fire training and qualifications.

This effort would not be possible without the contributions of NWCG staff, NWCG committees, and hundreds of subject matter experts across the wildland fire community.

References:

IPTM Story Map

Incident Performance and Training Modernization Webpage

NEW! S-290, Intermediate Wildland Fire Behavior (Blended) Available Now

Date: Aug 15, 2025
Questions? Please contact:
Fire Behavior Subcommittee

NWCG is excited to announce that the S-290, Intermediate Wildland Fire Behavior (Blended) training is now available on the Wildland Fire Learning Portal. S-290 (Blended) training combines online training and instructor-led training components that support individuals working towards any Single Resource Boss or Fire Effects Monitor incident qualifications.

This second course in the series collectively serves to develop fire behavior prediction knowledge and skills, and provides more detailed information on fuels, weather, and topography that affect wildland fire behavior for safety purposes.

Students are required to finish the prerequisite S-190, Introduction to Wildland Fire Behavior, before enrolling in S-290, Intermediate Wildland Fire Behavior (Blended).

References:

S-290, Intermediate Wildland Fire Behavior (Blended)

S-190, Introduction to Wildland Fire Behavior

Wildland Fire Learning Portal