List of Field Research tasks and rewards/2018

Please, note that there are always only either: specific amount of stardust, or XP, or just one kind of item, or a particular Pokémon encounter for a single task completed, which means only one of following possible rewards is rewarded for single Field Research task completed not all of them!

April 2018 tasks
Theme for Field Research tasks in April 2018 was Fire-type Pokémon.

May 2018 tasks
Theme for Field Research tasks in May 2018 was Electric- and Flying-type Pokémon. Shiny Charmander and Aerodactyl were available since May 19 and May 25 respectively.

June 2018 tasks
Theme for Field Research tasks in June 2018 was Water-type Pokémon. Shiny Larvitar was available since June 16.

July 2018 tasks
Theme for Field Research tasks in July 2018 was Kanto-region Pokémon. Shiny Squirtle was available since July 8.

August 2018 tasks
Theme for Field Research tasks in August 2018 was Electric-type Pokémon. Shiny Eevee was available since August 11.

September 2018 tasks
Theme for Field Research tasks in September 2018 was Fire-type Pokémon.

October 2018 tasks
Theme for Field Research tasks in October 2018 was Water-type Pokémon.

November 2018 tasks
Theme for Field Research tasks in November 2018 was Bug-type Pokémon. Shiny Gastly was available since November 3.

December 2018 tasks
Theme for Field Research tasks in December 2018 was previously featured Field Research Pokémon.

Event-only tasks
Following Field Research tasks were available during the certain events.

Community Day tasks
Following is the list of research tasks exclusively available only for the time of specific Community Days.

Adventure Week tasks
Following is the list of research tasks exclusively available only for the time of Adventure Week 2018.

Water Festival tasks
Following is the list of research tasks exclusively available only for the time of Water Festival 2018. The last two tasks were added in the latter half of the event.

GO Fest tasks
Following is the list of research tasks exclusively available only for the time of Pokémon GO Fest 2018. It was available only for attendants of the Fest in Chicago, Illinois, on July and, 2018. As seen all 4 of the tasks rewarded trainers with a single Rare Candy.

Johto Festival tasks
Following is the list of research tasks exclusively available only for the time of Johto Festival. These tasks gives Trainers opportunity to complete their Johto Pokédexes and complete A Ripple in Time, the Special Research tasks series. Additionally, these tasks for the first time in game's history rewarded Trainers for completing them with Evolution Items.

Pokémon World Championships 2018
During the time of Pokémon World Championships in Nashville, that took place in the later part of August, 2018, there was a single Field Research task available from PokéStops in 1 mile from the Championships.

Psychic Spectacular tasks
Following is the list of research tasks exclusively available only for the time of Psychic Spectacular 2018.

Halloween tasks
Following is the list of research tasks available exclusively for the duration of the Halloween 2018.

Let's Go Celebration tasks
Following is the list of research tasks available exclusively for the duration of the Let's Go Celebration.